WATCH: Marco Rubio's new BFF Rick Santorum gets stumped when asked to name Rubio's top accomplishments in the Senate

Greg P. | 9:07 AM on February 04, 2016

Rick Santorum — who just endorsed Marco Rubio for president — had a really, really tough time naming any of Marco Rubio’s accomplishments during an interview with MSNBC’s Joe Scarborough this morning. Check it out:

.@JoeNBC asks @RickSantorum 3 times: Can you name Rubio's top accomplishment in the Senate? Here's his answer. https://t.co/87024wzg4C

— Morning Joe (@Morning_Joe) February 4, 2016

Even worse, he literally said, “the bottom line is there isn’t a whole lot of accomplishments”:

New Rubio endorser Rick Santorum on Rubio's record: "The bottom line is there isn't a lot of accomplishments" https://t.co/xhF1K7YRzK

— Zeke Miller (@ZekeJMiller) February 4, 2016

With endorsers like that, who need enemies?

Chris Christie, who was on “Morning Joe” a little while later, used Santorum’s awful performance to attack Rubio’s inexperience as well:

.@ChrisChristie: Rick Santorum can't name ONE thing that Marco Rubio has done https://t.co/RTcPnP68RE pic.twitter.com/ndv5j30neg

— Morning Joe (@Morning_Joe) February 4, 2016