(CNN) Florida Sen. Bill Nelson -- a Democrat in a state that President Donald Trump won in 2016 -- announced Friday morning that he was not going to vote to support Judge Brett Kavanaugh's nomination to the Supreme Court.

"I will vote no on Judge Kavanaugh," he tweeted.

Nelson followed up with a more detailed statement later Friday.

"I've had many questions about Judge Kavanaugh and in an effort to be fair, I wanted to meet with him, but he was not available," Nelson said. "Dr. Ford's testimony was compelling and raises questions about his character and, therefore, there needs to be a full FBI investigation. As stated before, I will vote no."

On Wednesday, Nelson was still undecided on Kavanaugh's nomination, but told CNN that he did not have any concerns about Christine Blasey Ford's credibility, and said he was looking forward to the hearing.

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