Bolton says Trump tied Ukraine funds to probe

President Donald Trump said he wanted to maintain a freeze on military assistance to Ukraine until it aided political investigations into his Democratic rivals, former national security adviser John Bolton recounts in a draft of his forthcoming book.

Democrats demand Bolton testify at Trump's impeachment trial

The stakes over witness testimony at President Donald Trump's impeachment trial are rising now that a draft of a book from former national security adviser John Bolton appears to undercut a key defense argument - that Trump never tied withholding of aid to Ukraine to a demand the country investigate rival Joe Biden..

FACT CHECK: Trump defense misrepresents Mueller findings

In opening arguments of the impeachment trial, President Donald Trump's defense misrepresented the findings of a special counsel's report on Russian interference in the 2016 election by claiming the president was cleared of obstruction of justice.