Years after defeating Mitt Romney in the presidential election, President Obama took time to pick a fight with his former opponent during a speech to Congressional Democrats in Philadelphia.

“We’ve got a former presidential candidate on the other side who suddenly is just deeply concerned about poverty,” Obama grinned as the crowd laughed.

“That’s great! Let’s go! Come on! Let’s do something about it!” he taunted, pointing out that Republicans’ rhetoric on the issue had “shifted.”

It wasn’t long before Mitt Romney posted a response to the president’s taunts on Twitter.