Susan Davis

Updated at 4:19 p.m. ET

House Speaker Nancy Pelosi will convene a meeting Wednesday morning to hear from Democrats on whether or not to move forward with impeachment proceedings against President Trump.

More than a decade ago, then-Speaker Nancy Pelosi declared victory over the Bush administration in a clash between Congress and the president's assertion of executive privilege to try to block members of his administration from testifying as part of a congressional oversight investigation.

"It's a triumph for the balance of power, checks and balances, the Constitution of the United States," Pelosi said in March 2009.

If House Democrats ultimately begin impeachment proceedings against President Trump, last week will be remembered as one of the pivotal turning points.

Trump's decision to invoke executive privilege over the full report by special counsel Robert Mueller is prompting impeachment skeptics like Rep. Emanuel Cleaver, D-Mo., to reconsider.

Attorney General William Barr's refusal to appear before the House Judiciary Committee did accomplish one thing, according to Rep. Jamie Raskin, D-Md.

"They have succeeded in building a near unanimous sense in the Democratic Caucus that the executive branch of government is in defiance of the Constitution and the rule of law," said Raskin, a former constitutional law professor who sits on both the House Judiciary and Oversight committees.