Prominent members of the Senate on Thursday derided a decision by Russia to formally grant NSA leaker Edward Snowden asylum for one year, calling on the Obama administration to exact consequences on the former Cold War enemy.

Sen. Charles E. Schumer (D-N.Y.), joined a chorus of critics of Russian President Vladimir Putin, calling on President Obama to demand that the G-20 move its pending summit from Russia after Putin’s decision.

“Russia has stabbed us in the back,” Schumer, the No. 3 Democratic leader, told reporters.