We're into week four of the impeachment inquiry into President Trump.

Here are some new developments to keep you up to date.

Trump's personal lawyer, Rudy Giuliani, was paid $500,000 last year by a company founded by Lev

Parnas, who was arrested last week on campaign finance charges. Giuliani told the Washington Post

late Monday that he was confident the money he received for work done on behalf of Parnas'

business was legitimate and originated in the United States. That payment, though, means Giuliani's

firm was earning $500,000 from Parnas just as Giuliani began working closely with him to

take up dirt on Democrats in Ukraine. The information they collected is what prompted Trump to press

Ukrainian President Zelensky to investigate Joe Biden.

In a television interview that aired Tuesday, Hunter Biden conceded that it might have been a

mistake to serve on the board of a Ukrainian gas company while his father was vice president.

But he insisted that he did not have an ethical lapse. He accused Giuliani and Trump of pressing a

ridiculous conspiracy related to his tenure. Meanwhile, the House's impeachment inquiry is turning

attention toward former National Security Advisor John Bolton. A former top aide gave testimony

on Monday describing Bolton as infuriated by a shadow operation conducted by the president's

allies to dig up political dirt in Ukraine. Some lawmakers and aides are already talking privately

about the need to call Bolton to testify. The House of Representatives returned to Washington

Tuesday back in session and resuming the impeachment inquiry at a rapid pace. And two key means of

information gathering are at the forefront of the House's efforts this week. Document deadlines

closed-door hearings.

Hearings and depositions out of the public eye are scheduled for every day this week,

and deadlines are set for individuals and agencies to turn over key communications about Trump,

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