Axios

2020 Democratic presidential candidate Pete Buttigieg said on the "Iowa Press" television program Sunday that Joe Biden's vote to authorize the 2003 invasion of Iraq is an example of "why years in Washington is not always the same thing as judgment," AP reports.

“He supported the worst foreign policy decision made by the United States in my lifetime, which was the decision to invade Iraq.”

The 2010s were marked by terrorism, major natural disasters, huge political upheaval and, in the U.S. in particular, political polarization.

Zoom in: The decade began with Democratic President Obama, political gridlock in the Republican-controlled Congress and surging partisanship. It's closing with Republican President Trump impeached by the Democratic-controlled House. A bright spot has been the the U.S. economy, which has steadily improved since the financial crisis of the previous decade.

Martin Baron, the executive editor of the Washington Post, said on NBC's "Meet the Press" that while Americans may be "numb" to the more than 15,000 false claims made by President Trump and flagged by the Post, the newspaper still has a responsibility to hold "government officials accountable" through aggressive fact-checking.

Sen. Lindsey Graham (R-S.C.) warned Rudy Giuliani in an interview with The Daily Beast to make sure that the information he has gathered about President Trump's opponents in Ukraine isn't Russian propaganda.

“He has not shared any of that information with me. My advice to Giuliani would be to share what he got from Ukraine with the IC [intelligence community] to make sure it’s not Russia propaganda. I’m very suspicious of what the Russians are up to all over the world.” 

Opponents of job outsourcing are making a holiday-season appeal to President Trump: Stop U.S. companies from forcing American workers to train the very same cheaper foreign laborers who will soon replace them.

Why it matters: Trump promised voters he'd end abuses of worker visa programs and save U.S. jobs — but as he campaigns for re-election, advocates say he hasn't done enough.

2020 candidate Rep. Tulsi Gabbard (D-Hawaii) told ABC News Saturday she voted "present" during President Trump's House impeachment proceedings because she's concerned it would "embolden him." And she said it could cause "lasting damage" to the U.S. if he's re-elected and the Republicans regain the House in 2020.

"I think impeachment, unfortunately, will only further embolden Donald Trump, increase his support and the likelihood that he'll have a better shot at getting elected while also seeing the likelihood that the House will lose a lot of seats to Republicans."

Go deeper:

• Tulsi Gabbard on impeachment vote: "I did not take the easy vote"
• Tulsi Gabbard is the 2020 field's lightning rod

President Trump has retweeted the name of the alleged Ukraine whistleblower on his Twitter feed.

Why it matters: It and a retweet of a Washington Examiner post that also named the purported whistleblower marked the first time Trump has actively promoted the name, despite the fact that some of his allies, including son Donald Trump Jr. have repeatedly done so online.

The leader of an Apostolic megachurch, Pastor Guillermo Maldonado, will host the launch of President Trump's "Evangelicals for Trump" coalition at a Jan. 3 rally, The Miami Herald reports.

Why it matters: Since Christianity Today released an editorial op-ed calling for Trump's removal from office, the president has been working to strengthen his evangelical base. The rally at Maldonado's West Kendall Church is part of that strategy and also gives him access to one of the country's largest Hispanic congregations, per the Herald.

A federal judge on Friday denied an effort led by the voting rights group Fair Fight Action to return roughly 98,000 Georgia voters to the state's voter rolls.

What's happening: This ruling is part of a larger initiative for the state to cancel approximately 300,000 inactive voter registrations, due to those voters moving away or not participating in elections.