President Donald Trump and House Speaker Nancy Pelosi had not spoken for four months prior to the awkward moment at the start of the SOTU.
Previously, House Democrats have subpoenaed acting OMB Director Russel Vought and Secretary of State Mike Pompeo.
"Of course it's not appropriate," former National Security Adviser H.R. McMaster said, chucking. "Does anybody think it is appropriate?"
It's not just openly critical Republicans like Sen. Mitt Romney who have drawn Trump's ire — he is also angry at those who haven't defended him.
Insider's most recent poll found that only 30% of Americans are against impeaching Trump, while a plurality support it.
President Trump publicly called on Ukraine and China to investigate the former Vice President Joe Biden and his son last week.
House Intelligence Committee Chairman Adam Schiffer said an agreement has been reached for the Trump-Ukraine whistleblower to testify before Congress.
A whistleblower complaint that an intelligence official filed against Trump cites multiple White House officials as being the source of the complaint.