CNN's Anderson Cooper takes a closer look at US diplomat Bill Taylor's testimony in which he says that he had been told President Donald Trump would withhold military aid to Ukraine until it declared investigations would be launched that could help his reelection chances.

Former CIA operative Steve Hall says that Russian President Vladimir Putin has benefited from President Donald Trump's decision-making and foreign policy.

President Donald Trump appeared on Fox News to defend his phone call with Ukrainian President Volodymyr Zelensky saying it was a "perfectly fine call," and going further to say Zelensky defended the call. CNN's Anderson Cooper looks at the reasoning behind Zelensky's defense.

CNN's Anderson Cooper breaks down the Constitution's emoluments clause, which President Donald Trump refers to as "phony."

President Donald Trump's urging of Ukraine's President to investigate rivals coincided Russian President Vladimir Putin ad Hungarian Prime Minister Viktor Orban pushing a disparaging view of the country to Trump, according to the Washington Post.

CNN's Anderson Cooper points out the flaws in White House press secretary Stephanie Grisham's account of Mick Mulvaney's quid pro quo statements that Grisham went on "Fox & Friends" to defend.

The acting White House chief of staff Mick Mulvaney announced that the 2020 G7 summit will be held at President Donald Trump's resort in Doral, Florida. CNN's Anderson Cooper reacts to this announcement.

CNN's Anderson Cooper examines the statements, and subsequent back-pedaling, made by acting White House chief of staff Mick Mulvaney during a press conference.

CNN's Anderson Cooper discusses the investigation of President Donald Trump's personal attorney Rudy Giuliani's business dealings in Ukraine and The Washington Post reporting that acting White House chief of staff Mick Mulvaney placed a hold of nearly $400 million of aid to Ukraine at the direction of Trump.

CNN's Anderson Cooper discusses Speaker Nancy Pelosi's surprising response to another Twitter attack from President Donald Trump.