Sen. Elizabeth WarrenElizabeth Ann WarrenMore Massachusetts Voters Prefer Deval Patrick for President than Elizabeth Warren Trump's trade war — firing all cannons or closing the portholes? Poll: Most Massachusetts voters don't think Warren should run for president in 2020 MORE (D-Mass.) said Tuesday she is not yet ready to support the impeachment of President TrumpDonald John TrumpHannity urges Trump not to fire 'anybody' after Rosenstein report Ben Carson appears to tie allegation against Kavanaugh to socialist plot Five takeaways from Cruz, O'Rourke's fiery first debate MORE while special counsel Robert MuellerRobert Swan MuellerSasse: US should applaud choice of Mueller to lead Russia probe MORE is conducting his probe.

"I'm not there," the senator told "The View" host Meghan McCain when asked if Democrats should push for impeachment if they take control of Congress after the November midterms. "Where I am is that we need this independent investigation without political interference."

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Warren has previously said she would be open to impeachment proceedings if the findings of Mueller's probe merited that action. She said Tuesday that the investigation must first be allowed to proceed.

"I take this very seriously. This is a serious constitutional move. My view on this is, protect the special prosecutor, let him finish his work without political interference," said the senator. "Let him make a full report to the American people and then collectively we can make the decision about what the appropriate next step is. It's Donald Trump who doesn't want Mueller to be able to continue an independent investigation and bring it to a conclusion."

The special counsel is also investigating whether Trump obstructed justice. Trump has blasted the probe as a "witch hunt."

A handful of liberal House Democrats have offered impeachment articles but leadership, including House Minority Leader Nancy PelosiNancy Patricia D'Alesandro PelosiSinema, Fitzpatrick call for long-term extension of Violence Against Women Act Internal RNC poll shows Pelosi is more popular than Trump: report Indicted lawmaker angers GOP with decision to run for reelection MORE (D-Calif.) has been critical of those efforts, worrying it could hurt the party in the midterms.