He won 49% of the votes cast. He did not get a majority, but a plurality. The turnout was ~64%, so he got ~30% of the possible votes. His main opponent got about ~28% of the possible votes.
He doesn't have the mandate he thinks he does, but he's a megalomaniac led by his nose ring by the psycopathic megalomaniacs behind Project 2025, which ~90% (more?) of Americans said that they didn't like when they saw it.
Sorry, but I don't think these percentages, turnouts, and other technicalities matter, at all.
This is how the American people has chosen to represent themselves. The American people created the system, and the Americans knew their own system. The system produced this guy.
Now, why does it matter which percentage did he get? He got enough, did not he? And obviously he does have the mandate, because he is able to do things his way.
He doesn't have the mandate he thinks he does, but he's a megalomaniac led by his nose ring by the psycopathic megalomaniacs behind Project 2025, which ~90% (more?) of Americans said that they didn't like when they saw it.