A Democratic lawmaker on Monday made another move toward impeaching President Trump, by circulating an article of impeachment on obstruction of justice to all House members on Monday.

Rep. Brad Sherman, D-Calif., argued there is a "sufficient" amount of evidence to level an obstruction of justice charge against Trump.

"As the investigations move forward, additional evidence supporting additional Articles of Impeachment may emerge," Sherman said in a statement. "However, as to Obstruction of Justice and 18 U.S.C. ยง 1512 (b)(3), the evidence we have is sufficient to move forward now. And the national interest requires that we do so."

Sherman is the latest Democrat to raise the prospect of impeachment. Rep. Al Green, D-Texas, called for the president's impeachment in mid-May and has continued those calls in recent weeks. He said that while removing Trump from office would leave Vice President Pence in the Oval Office, who he acknowledged he has significant differences with, he argued that a "competent government" is needed no matter what.

"I act not for partisan advantage," Sherman said. "Having served with Mike Pence in the House for twelve years, I disagree with him on most issues of public policy. But we must move forward as quickly as possible to ensure a competent government that respects the Constitution and the rule of law, even if we end up with a president who is effective and dedicated to regressive policies."

Impeachment is unlikely to be brought up now as Republicans hold the majority in the House. However, Sherman said it is time to put the wheels in motion for the impeachment process.

"[G]iven the risk posed to the Republic, we should move things forward as quickly as possible," he added.