The US State Department is quietly letting congressional offices know that it has substantive concerns about labeling Russia a “state sponsor of terrorism,” Politico reported.

In July, House Speaker Nancy Pelosi told Secretary of State Antony Blinken  that if he didn’t put Russia on the terrorism blacklist, then Congress would. Since then, the Senate unanimously passed a non-binding resolution urging Blinken to do so, followed by a bipartisan quintet of House members introducing a bill that would officially slap the designation on Russia—circumventing the nation’s top diplomat.

But multiple people familiar with the conversations told NatSec Daily that agency officials in recent days have relayed to congressional offices their serious problems with the legislation.