Former President Obama on Monday wished Joe Biden Joe BidenBiden leads Trump by 36 points nationally among Latinos: poll GOP set to release controversial Biden report Can Donald Trump maintain new momentum until this November? MORE a heartfelt happy birthday, calling him the "best vice president anybody could have."

"Happy birthday to Joe Biden, my brother and the best vice president anybody could have," Obama wrote in a tweet, which included a photo of Biden, who turned 75 on Monday, grinning while Obama gave his 2014 State of the Union address before Congress.

The two have regularly joked about their "bromance" online. Last year, Biden posted a photo of two friendship bracelets with the names "Joe" and "Barack" for Obama's birthday.

ADVERTISEMENT

Biden also wished Obama a happy birthday earlier this year, describing the former commander in chief as a “gift” to him and the country.

Biden, who has repeatedly criticized the Trump administration, has not ruled out the possibility of a 2020 presidential bid.