According to Politico, the voting on Tuesday (local time) saw five Republican Senators--Thom Tillis from North Carolina, Susan Collins from Maine, Lisa Murkowski from Alaska, Mitch McConnell from Kentucky, and Rand Paul from Kentucky--joining Democrats in supporting the resolution.
The report stated that unifying the party is the most important job for any presidential candidate, but Biden is "bleeding Democratic support" in the latest poll, conducted after his "rough debate" with Trump.