Sen. Rand Paul Randal (Rand) Howard PaulSecond GOP senator to quarantine after exposure to coronavirus GOP senator to quarantine after coronavirus exposure The Hill's Morning Report - Sponsored by National Industries for the Blind - Trump seeks to flip 'Rage' narrative; Dems block COVID-19 bill MORE (R-Ky.), who is running of president, took a veiled swipe Tuesday at defense hawks, saying that the downing of a Russian warplane by Turkey is a reason to engage more with Moscow, not less.

"The shooting down of a Russian fighter jet illustrates precisely why we need open lines of communication with Russia and should resist calls from some Presidential candidates to isolate ourselves from discussions with our adversaries," Paul said in a statement.

Earlier Tuesday, Turkey said that it shot down a Russian warplane that entered its airspace.

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It isn't the first time that Paul has separated himself from the more hawkish Republicans seeking the party's presidential nomination.

He took a direct shot at Sen. Marco Rubio Marco Antonio RubioOvernight Defense: Pentagon redirects pandemic funding to defense contractors | US planning for full Afghanistan withdrawal by May | Anti-Trump GOP group puts ads in military papers Democrats step up hardball tactics as Supreme Court fight heats up Press: Notorious RBG vs Notorious GOP MORE last month, saying the country is "really lucky" the Florida Republican wasn't president during the Cold War.

"I mean, Reagan avoided a Cold War by, one, not setting red lines like that, continuing to have open communication with the Russians, having a strong enough defense to repel attack and to worry the Russians. But we did not try to get involved with an altercation with them," Paul said at the time.

The senator also doubled down on his opposition to a no-fly zone over Syria, an idea that has support from lawmakers in both parties, including Rubio.

He said that supporters of a no-fly zone "need to realize that shooting down other countries' fighter jets will be the result and a war between nuclear superpowers a possibility."

Rubio, separately, said last month that he believed the United States would be able to enforce a no-fly zone over Syria and that "the Russians would not test that."