Republicans also know how to have fun, at least New Jersey Gov. Chris Christie is when he hit back at his GOP presidential rival Sen. Marco Rubio using Adele's "Hello."

The governor took to social media earlier and posted a video on Twitter, which features the song. The tweet aims to point out that before running both for the presidency, Rubio and Christie have an amicable relationship.

According to CNN, the video even includes a quote from the Florida senator that praised Christie.

The quote said, "Conservative leadership is hard to find these days, but the voters in New Jersey have seen it firsthand," before going on to complete the statement with "The people of New Jersey were desperate for real leadership and a new direction ... And that's what they got in Governor Chris Christie."

He captioned the tweet "Oh @marcorubio, the way things used to be #tbt"

The tweet may be a response to Rubio's political ads that criticized the New Jersey governor, particularly Christie's record in the state and even tying him to President Barack Obama.

Rubio directly compared the governor to Obama and said that he "has done a number of things that are very similar to the Obama agenda." Furthermore, he also took a dig at Christie's attendance record and said that he's absent most of the time, which is why Christie's numbers are falling.

Apart from Rubio, Christie is also having an on-going feud with Jeb Bush, another GOP presidential rival. USA Today noted that Christie said that Jeb can say anything that he wants, but said to stop calling him a nice guy and he likes him. The presidential aspirant said, "I don't need the fake compliment leading into the criticism."

Christie also lamented that he does not understand why Rubio is targeting his criticisms on him, when he himself have been very nice to the Florida senator.

Business Insider reported that he went on to say that he does not think that the senator is naive, but only inexperienced -- then also compared him to Obama.

He said, "Listen, we've already seen what happens when a first-term United States senator becomes president of the United States."

The three mentioned Republican candidates are noted to be fighting to be at the least, alternative to Donald Trump who is clearly dominating the presidential polls.

It is not yet unclear whether this mudslinging from the three candidates will help their own respective campaigns.