GOP defends Trump as Bolton book adds pressure for witnesses

Senators faced mounting pressure Monday to summon John Bolton to testify at President Donald Trump's impeachment trial even as Trump's lawyers brushed past extraordinary new allegations from Trump's former national security adviser and focused instead on corruption in Ukraine and historical arguments for acquittal.

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.

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.