Sen. Chris Murphy Christopher (Chris) Scott MurphyDemocratic senator calls for 'more flexible' medical supply chain to counter pandemics The Hill's 12:30 Report - Presented by Facebook - Don't expect a government check anytime soon GOP chairman to release interim report on Biden probe 'in about a week' MORE (D-Conn.) said Tuesday that the Russian government denied him a visa to enter the country, making him at least the second senator to be denied a visa this week.

Murphy, who sits on the Senate Foreign Relations Committee, said in a statement that he had been planning to visit the country as part of an upcoming bipartisan congressional delegation.

“Unfortunately, the Russian government is further isolating their country by blocking our visit and several others in recent months," Murphy said.

"With the collapse of recent arms control agreements and significant domestic opposition to Vladimir Putin Vladimir Vladimirovich PutinWatchdog confirms State Dept. canceled award for journalist who criticized Trump Former intelligence agency director Robert Cardillo speaks out against 'erratic' Trump Kremlin: Putin calls for reset between US and Russia on cyber relations before elections MORE’s authoritarian rule, this is potentially a perilous moment for our two nations’ fragile relationship, and it’s a shame that Russia isn’t interested in dialogue,” he added.

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Murphy said that because the countries have the "world’s two largest nuclear arsenals with the capacity to destroy each other many times over" they also have a "responsibility to keep the world safe and prevent conflict between the U.S. and Russia."

The Russian Embassy in a tweeted statement called Murphy's assertion that it was isolating itself "nonsense."

"If U.S. legislators favored development of equal inter-parliamentary dialogue with Russia, they would have long hosted their colleagues from the Federation Assembly of the Russian federation on the Capitol Hill," the statement said.

Sen. Ron Johnson Ronald (Ron) Harold JohnsonThe Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' The Hill's 12:30 Report: Ginsburg lies in repose CHC leaders urge Senate to oppose Chad Wolf nomination MORE (R-Wis.), who is also on the Foreign Relations Committee, said on Monday that Russia had also denied his visa request to go to the country as part of a congressional delegation.

"I had hoped direct dialogue with Russian parliamentarians could help set the stage for better future relations between our two nations," Johnson said in a statement. "Unfortunately, Russian officials continue to play diplomatic games with this sincere effort and have denied me entrance to Russia."

Russia has criticized and denied entry to U.S. lawmakers before. Johnson and Sen. John Barrasso John Anthony BarrassoSenate to push funding bill vote up against shutdown deadline The conservative case for phasing out hydrofluorocarbons GOP senator attacks Biden: 'I'm not sure what he recalls' MORE (R-Wyo.) moved in late 2017 to scrap a trip to Russia after they said Moscow denied a visa for fellow Sen. Jeanne Shaheen Cynthia (Jeanne) Jeanne ShaheenSenate Democrats introduce bill to sanction Russians over Taliban bounties Trump-backed candidate wins NH GOP Senate primary to take on Shaheen Democratic senator urges Trump to respond to Russian aggression MORE (D-N.H.).