“From the day I announced I was running for President, I have NEVER had a good @FoxNews Poll,” Trump tweeted. “Whoever their Pollster is, they suck. But @FoxNews is also much different than it used to be in the good old days. With people like Andrew Napolitano, who wanted to be a Supreme Court Justice & I turned him down (he’s been terrible ever since), Shep Smith, @donnabrazile (who gave Crooked Hillary the debate questions & got fired from @CNN), & others, @FoxNews doesn’t deliver for US anymore. It is so different than it used to be. Oh well, I’m President!”

Meanwhile, a Washington Post-Schar School survey conducted in early October shows 58% of Americans are supportive of the decision by Congress to initiate an inquiry, including 49% who say Congress was right to begin an investigation and should also take the next step to remove Trump from office. Earlier this year, Post-ABC polls found less than half saying Congress should begin impeachment proceedings.

And polls show that the shift was closely tied to Pelosi’s announcement of the inquiry.

An early October poll from Quinnipiac University finds 45% of voters say Trump should be impeached and removed from office, up from 37% in a poll conducted immediately before that announcement.

—With Associated Press

More must-read stories from Fortune:

—A running list of questions on the impeachment inquiry, answered
—White House claims Trump impeachment inquiry violates procedure
—5 lessons history has taught us about impeachment
—What is CrowdStrike, the company Trump mentioned during his Ukraine call?
—How the circumstances around Donald Trump’s impeachment inquiry differ from Bill Clinton’s
—How whistleblowers have taken down titans of American business
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