Two of the top anchors at Fox News said that President Trump's Friday tweets attacking ex-ambassador to Ukraine Marie Yovanovitch raised the possibility of an additional article of impeachment being added against Trump for witness tampering.

Bret Baier, Fox's chief political anchor, said Trump's tweets "enabled" House Intelligence Committee Chairman Adam Schiff, who is leading the impeachment inquiry, to "characterize that tweet as intimidating the witness or tampering with the witness, which is a crime."

"Adding, essentially, an article of impeachment real time as this hearing is going on," Baier said.

Chris Wallace, the anchor of Fox's flagship Sunday show, agreed with Baier, noting the attack "played out in real time."

"It does raise the possibility of witness intimidation and witness tampering as a new charge here," Wallace said.