Simple ; because dumb-*** nominated him.
Do you think that’s an acceptable reason? I don’t.
A question just as real is why Obama didn't nominate someone who could get through the Senate.
He... he did.
“"(Obama) could easily name Merrick Garland, who is a fine man," Hatch
said in Newsmax, adding later, "He probably won't do that because this appointment is about the election."
source
Garland was highly praised by Republicans. He was a non-controversial nominee with high credentials.
The problem wasn’t Garland. The problem wasnt that he couldn’t get through the Senate. With his credentials and bipartisan support, Garland likely would have been approved, but it was never allowed to be brought to a vote. They never even held hearings.
This had nothing to do with Obama picking a bad nominee. It had to do with Republicans willing to gamble on the election in an attempt to steal a Supreme Court seat. “... hours after Justice Antonin Scalia's death last February, Senate Republican leader Mitch McConnell announced that there would be no hearings, no votes, no action whatsoever, on any Supreme Court nomination until the American people got to vote on a new president.”
Source.
Please don’t revise history.