There is still uncertainty if new witnesses and evidence will be allowed during the impeachment process. Just some of the rules Senators will have to comply with: no cell phones, no standing and no talking.
It's another jolt of uncertainty to an office in the White House that has experienced significant turnover during the past year.
House Judiciary Committee Chairman Jerry Nadler, D-N.Y., called Dershowitz's legal analysis "simply ignorance."
"We take the position that we want to hear from witnesses," said Sen. Sherrod Brown of Ohio. "I don't know what Hunter Biden has to do with the phone call the president made."
"I didn't say it was OK," Sen. Richard Shelby, R-Ala., said on ABC's "This Week," adding: "People do things. Things happen."
"They appear to be succumbing to pressure from the administration," Rep. Adam Schiff said on ABC's "This Week."
“As terrifying as it was to share my story on a national stage, I had to believe that coming forward would help me reclaim my voice and help others reclaim theirs," she said.
Sanders' campaign has sought to cast him as an unflinching defender of the program, contrasting his position with the former vice president's.
After a tumultuous decade, the percentage of voters who identify as Republican or Democrat has remained stable, but there are big changes inside the numbers.
The president — who has often said he views himself as his own best spokesman — will have no choice but to watch, along with the rest of the public.
An ardent European supporter of Trump's admitted to having sent supposed details about Yovanovitch's whereabouts that made their way to Lev Parnas, but said it was "ridiculous banter."
Marketers are voicing concerns about what happens if their ad appears just after a commercial for Trump or Bloomberg, one expert said.
Newly released documents include photos of Lev Parnas with President Trump and of him with Ivanka Trump, Donald Trump Jr., and Pam Bondi, a lawyer on the impeachment defense team.
Yang once described himself as a "younger, fresher, more modern, more Asian version of Bernie."
The decentralized neo-Nazi movement has chapters across the U.S. and the world, and experts say members' threats of violence should be taken seriously.
The messages show that Derek Harvey, an aide to GOP Rep. Devin Nunes, was far more involved than previously known in an investigation.
Trump's legal team has some high-profile members, including Alan Dershowitz and Kenneth Starr.
He pleaded guilty to the charges of conspiracy to commit insider trading and lying to the FBI in October.
Analysis: The president is raising the stakes of his impeachment at exactly the moment Republicans want him to quietly walk away with a win.
A ruling could come in the spring — just as the 2020 presidential race is heating up.