Donald Trump fired a series of bizarre accusations against Joe Biden this week as the embattled ex-president celebrated his 78th birthday with a wild MAGA party in Florida, RadarOnline.com has learned. Trump’s latest allegations against Biden came on Friday night as some of Trump’s most loyal MAGA supporters threw the convicted felon ex-president a birthday party in West Palm Beach. According to Trump, President Biden was guilty of “providing material support for terrorism” via the ongoing crisis at the southern border. “So, in additional to all of his other well-documented offenses,” the form…