Senate Minority Leader Chuck Schumer has called a meeting of Democratic senators to discuss the resignation of President Donald Trump’s national security adviser and published reports about contacts between Trump’s campaign and Moscow.

The senators will meet at about 11:30 Wednesday morning. A Schumer aide told CBS News that the purpose of the meeting is “digesting the new reports that came out last night, and discussing where to go next.”

Democrats are pushing for a bipartisan commission to investigate Trump’s ties to Russia -- and Schumer said yesterday that National Security Adviser Michael Flynn, who resigned Monday, may have broken the law in his contact with Russian officials.

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Another leading Democrat, Illinois Sen. Dick Durbin, is pressing the Democrats’ case for an independent investigation. He and other Democrats say that’s the best way to answer questions about the Trump administration’s ties to Russia.

Republican leaders continue to refuse to consider that option and say three congressional investigations underway are enough.

Durbin tells MSNBC that it’s a “graveyard” for investigations when congressional intelligence committees get involved because their work is largely done outside of public view.