Former Secretary of State and Democratic presidential candidate Hillary ClintonHillary Diane Rodham ClintonPoll: More Republican voters think party is more united than Democratic voters Whoopi Goldberg presses Sanders: 'Why are you still in the race?' Poll: Biden holds slight edge on Trump in Wisconsin MORE weighed in on President TrumpDonald John TrumpBiden campaign: Trump and former vice president will have phone call about coronavirus Esper: Military personnel could help treat coronavirus patients 'if push comes to shove' Schumer calls for military official to act as medical equipment czar MORE's tweet on Friday that criticized a witness in the impeachment inquiry, stating "witness intimidation is a crime."

"Witness intimidation is a crime, no matter who does it. Full stop," the former secretary of State tweeted. 

Clinton's tweet follows a post by Trump about testifying witness and former ambassador to Ukraine Marie YovanovitchMarie YovanovitchAmerica's diplomats deserve our respect House panel says key witness isn't cooperating in probe into Yovanovitch surveillance President Trump's assault on checks and balances: Five acts in four weeks MORE

ADVERTISEMENT

"Everywhere Marie Yovanovitch went turned bad," Trump tweeted Friday. "She started off in Somalia, how did that go? Then fast forward to Ukraine, where the new Ukrainian President spoke unfavorably about her in my second phone call with him. It is a U.S. President’s absolute right to appoint ambassadors."

Yovanovitch called the tweet "intimidating" after House Intelligence Committee Chairman Adam SchiffAdam Bennett SchiffDemocrats introduce bill to set up commission to review coronavirus response Schiff drafting legislation to set up 9/11-style commission to review coronavirus response Coronavirus pushes GOP's Biden-Burisma probe to back burner MORE (D-Calif.) read it to her during the hearing. 

"It’s very intimidating,” Yovanovitch said. “I can’t speak to what the president is trying to do, but I think the effect is to be intimidating.”

Yovanovitch was removed from her post in Ukraine earlier this year. She testified as part of the House's impeachment inquiry into Trump on Friday.