Republican senators pushed back on Sunday against criticism from Democrats that Tulsi Gabbard, Donald Trump's pick to lead US intelligence services, is "compromised" by her comments supportive of Russia as well as secret meetings she attended as a congresswoman with Syria's president, a close ally of the Kremlin and Iran. Sen. Tammy Duckworth, an Illinois Democrat and veteran of combat missions in Iraq, said she had concerns about Tulsi Gabbard, Trump's choice to be director of national intelligence, the AP reports. "The US intelligence community has identified her as having troubling relationships with America's foes. And so my worry is that she couldn't pass a background check," Duckworth said.