Updated at 7:48 p.m. ET
After months of expressing caution on a push for impeachment, House Speaker Nancy Pelosi launched a formal impeachment inquiry into President Trump Tuesday.
"The president must be held accountable," Pelosi said. "No one is above the law."
The landmark move comes after controversy over a phone call Trump had with the newly elected Ukranian leader in July and reporting that the president pressured him to investigate political rival Joe Biden.