So Republicans did end up winning that one contested Pennsylvania Senate election and reach 53 Senate seats, but not before the Democrats openly tried to Steal it:

>During the initial counting of votes, various Pennsylvania Democrats voted to illegally count mail-in ballots that had been thrown out due to missing or incorrect dates, something that is a disqualifier according to Pennsylvania state law. While some lower courts have deemed this rule illegal, it was upheld by the Pennsylvania Supreme Court on November 1, alongside a decision allowing provisional ballots with the same issues to be counted. This was admitted by some officials, with Bucks County elections commissioner Diane-Ellis Marseglia stating that “people violate laws anytime they want. So, for me, if I violate this law, it’s because I want a court to pay attention." Following the decision by certain Democratic-controlled elections boards to continue counting invalid ballots

Gee, I wonder why those crazy conspiracy theorists think some of 2020 Biden's 81 million votes might have been illegitimate...