For the fifth time, he just needs to fill up some paperwork and the Canadian border service agency decides to allow him in or not, the same right is given to any person with a criminal record visiting Canada.
George W. Bush has a record for DUI and the same process was necessary whenever he visited Canada, they never prevented him from entering the country, just like they’ll never prevent Trump from entering Canada.
Doesn’t matter, the process to ask to be allowed in is the same.
Also, in this specific case, the rape accusations were in civil court so they’re not accusations that would prevent him from entering Canada. The charges that made him a felon are the ones related to the hush money.