Former Presidential candidate Senator Marco Rubio will be appearing with Republican vice-presidential nominee Mike Pence on the campaign trail, an aide to the Indiana governor told ABC News.

Pence and Rubio could be campaigning together in the battleground state of Florida in the next few weeks, the aide said, also adding that Pence and Rubio have been in regular contact over the phone.

According to the Rubio campaign, no joint events are “scheduled at this time,” but “Marco has tremendous respect and admiration for Governor Pence.”

Campaigning with Rubio is one of many recent moves that Pence has made to get Republicans to rally the party behind Trump. Pence has also met privately with John McCain and Jeb Bush, and has also reached out to John Kasich and Ted Cruz.

After losing his home state to Trump, Rubio said he would support the Republican nominee but later said he still didn’t think Trump could be trusted with the nuclear codes but that he planned to keep Trump in check in the Senate.

Rubio also stated that he doesn’t plan on making any personal appearances with Trump.

“Not that I’m looking to undermine him, but I think the differences between us on key issues are so significant that I don’t plan — I’ve got to run my own race,” Rubio told CNN in June.