Joe Biden greeted audience members during a bus tour stop Tuesday in Iowa.

Political Notebook

Biden calls Iowa voter a ‘liar’ after he brings up Ukraine

Democratic presidential candidate and former vice president Joe Biden got into an extraordinary exchange Thursday afternoon with an Iowa farmer who first called him too old to run and then challenged him on Hunter Biden’s activities in Ukraine.

Former vice president Joe Biden.

‘You’re a damn liar’: Biden has tense exchange with Iowa voter over Biden’s age, son

Former vice president Joe Biden got into a heated exchange with an attendee at a town hall event in Iowa on Thursday after the man told Biden he was too old to be president and brought up his son, Hunter Biden.

John Kerry in 2018.

John Kerry endorses Joe Biden, saying US ‘desperately needs [him] right now’

Kerry will join Biden on the campaign trail in Iowa on Friday and New Hampshire on Sunday, according to the Biden campaign.

Speaker of the House Nancy Pelosi reacted to a reporter’s question about whether she hates President Donald Trump.

‘Don’t mess with me.’ Pelosi rebukes reporter who asked if she ‘hates’ Trump

House Speaker Nancy Pelosi told reporters that as a Catholic, she resents the suggestion that she hates anyone.

A September post on Bernie Sanders’ Instagram account.

With memes, videos, and quips, Bernie Sanders’ campaign uses Instagram to boost his appeal to young voters

The Vermont senator has far more Instagram followers than any other Democratic presidential candidate and posts more frequently with a variety of content.

Speaker of the House Nancy Pelosi, D-Calif., makes a statement at the Capitol in Washington, Thursday, Dec. 5, 2019. Pelosi announced that the House is moving forward to draft articles of impeachment against President Donald Trump.  (AP Photo/J. Scott Applewhite)

Read the text of Pelosi’s announcement on articles of impeachment

House Speaker Nancy Pelosi announced on Thursday that the House is moving forward to draft articles of impeachment against President Trump.

Watch live: House Speaker Nancy Pelosi delivers statement on impeachment

House Speaker Nancy Pelosi is providing an update on the impeachment inquiry.

US Speaker of the House Nancy Pelosi speaks about the impeachment inquiry of US President Donald Trump at the US Capitol in Washington, DC, on December 5, 2019. (Photo by SAUL LOEB / AFP) (Photo by SAUL LOEB/AFP via Getty Images)

Pelosi announces House to draft articles of impeachment against Trump

House Speaker Nancy Pelosi announced that she’s asking the House Judiciary chairman to proceed with articles of impeachment, saying that President Trump “leaves us no choice but to act.”

The House Judiciary Committee listened to testimony Wednesday.

As impeachment proceedings continue, no one seems happy in Washington

Democrats and Republicans were in a bitter mood Wednesday as the impeachment inquiry into President Trump entered a new phase with the first Judiciary Committee hearing. Both sides know they’re not going to get what they want during this holiday season, and they hardly relish the prospect of working straight through to an expected impeachment vote in the days before Christmas.

From left: Noah Feldman of Harvard University, Pamela Karlan of Stanford University, Michael Gerhardt of the University of North Carolina, and Jonathan Turley of George Washington University.

Key quotes from the Judiciary Committee’s impeachment hearing

“If we cannot impeach a president who abuses his office for personal advantage we no longer live in a democracy,” one professor testified.

Pamela S. Karlan.

Impeachment witness apologizes after reference to Trump’s son Barron draws White House rebuke

White House press secretary Stephanie Grisham called it a “classless move.”

WASHINGTON, DC DECEMBER 4: Ranking member Rep. Doug Collins (R-GA) speaks as Chairman Rep. Jerrold Nadler (D-NY) listens during testimony by constitutional scholars before the House Judiciary Committee in the Longworth House Office Building on Capitol Hill December 4, 2019 in Washington, DC. This is the first hearing held by the Judiciary Committee in the impeachment inquiry against U.S. President Donald Trump, whom House Democrats say held back military aid for Ukraine while demanding it investigate his political rivals. The Judiciary Committee will decide whether to draft official articles of impeachment against President Trump to be voted on by the full House of Representatives. (Photo by Saul Loeb-Pool/Getty Images)

The major takeaways so far from Wednesday’s impeachment hearings

The next phase of the impeachment inquiry of President Trump moved to the House Judiciary Committee on Wednesday. Here are some takeaways from the hearing so far.

A group photo of the NATO leaders including Prime Minister of Albania Edi Rama, President of France Emmanuel Macron, British Prime Minister Boris Johnson, Chancellor of Germany Angela Merkel, Secretary General of NATO Jens Stoltenberg, US President Donald Trump and Turkey President Recep Tayyip Erdogan.

Trump and other world leaders kept butting heads at the NATO summit. Here’s what happened

Here’s a closer look at Trump’s interactions with foreign leaders over the course of the summit.

President Donald Trump (left) and Canadian Prime Minister Justin Trudeau at the NATO summit in Watford, England.

President Trump calls Justin Trudeau ‘two-faced’ after NATO reception remarks

The comments came after Canadian Prime Minister Justin Trudeau was overheard appearing to gossip about Trump on video.

From left, Constitutional law experts, Harvard Law School professor Noah Feldman, Stanford Law School professor Pamela Karlan, University of North Carolina Law School professor Michael Gerhardt and George Washington University Law School professor Jonathan Turley.

Three law professors testify that Trump conduct meets impeachment threshold

The House Judiciary Committee opened its first impeachment hearing Wednesday, moving swiftly to weigh findings by fellow lawmakers that President Trump misused the power of his office.

Watch live: House Judiciary impeachment hearing

The House impeachment inquiry is beginning a new phase on Wednesday morning.

Andrew Yang spoke during the New Hampshire Democratic Party State Convention in Manchester in September.

Ground Game

What does the lasting power of Andrew Yang tell us about politics today?

The guy who wants to give everyone $1,000 a month has outlasted governors and senators, and may just take on President Trump.

House Intelligence Committee Chairman Adam Schiff held a news conference on Tuesday.

Here’s how the founders felt about impeachment

Representative Adam Schiff began the Intelligence Committee’s report on the impeachment inquiry into President Trump by turning back the clock and quoting a warning from George Washington.

Senator Elizabeth Warren, shown campaigning in Iowa last month, has shortened her policy-dense stump speech lately.

Some Elizabeth Warren backers urge the ‘plans’ candidate to get more personal

The Massachusetts senator has trimmed her policy-laden stump speech as she has lost her polling lead in Iowa and New Hampshire.

House Intelligence Committee Chairman Adam Schiff.

The five most incisive excerpts from the House Intelligence Committee’s impeachment report

The 300-page report outlines the evidence the committee has collected against Trump in his call with Ukraine, as well as efforts by the administration to prevent key witnesses from testifying and withhold documents demanded by impeachment investigators.

Track the candidates for president

//c.o0bg.com/rf/image_90x90/Boston/2011-2020/2019/02/08/BostonGlobe.com/Politics/Images/CadCollagever2.jpg Tracker: Who’s running for president in 2020?

The 2020 presidential election is still a ways off, but you’re forgiven if you feel like election season is already upon us. Track the candidates here.

Ground Game

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