Bangladesh, July 28 -- Republican leaders in the US Senate are facing mounting criticism from conservative voices and supporters who argue that the party has failed to deliver on many of the priorities voters expected after handing Republicans control of both Congress and the White House. At the center of the debate are Senate Majority Leader John Thune of South Dakota and Senator James Lankford of Oklahoma, who have come under fire for their handling of key legislative priorities, including the Safeguard American Voter Eligibility (SAVE) Act.

The criticism reflects a broader frustration within conservative circles that Republicans, despite holding significant political power, have struggled to translate campaign promises into legislativ...