Former President Barack Obama attended Jimmy Carter’s state funeral on Thursday without his wife, Michelle Obama, although a spokeswoman for the former first lady said she sent her condolences to the Carter family.

Bipartisan buds? President-elect Donald Trump said he and former president Barack Obama “probably do” like each other despite having “different philosophies” after the two were seen chitchatting and laughing during former President Jimmy Carter’s funeral at the National Cathedral in Washington on Thursday.

Trump is obviously no fan of Biden, but Obama and his veep also have a famously complex relationship, only made more so after Obama helped nudge Biden to quit the presidential race last summer. Surely Obama feels some frustration that Biden fumbled a possibly winnable race; maybe he couldn’t help spill to his sworn enemy?