By\u00a0Bethany Irvine\r\nU.S. Sen. John Cornyn lambasted President Joe Biden on Tuesday for his decision to stick to the administration's Aug. 31 deadline to withdraw all U.S. troops, citizens, and allies from Afghanistan after 20 years in the country.\r\nCornyn accused the Biden administration of letting the Taliban dictate military strategy. "We have a commitment to every American and Afghan ally to get them out safely," he said in a statement. "No one should be left behind because of an arbitrary, self-imposed deadline based on a campaign promise."\r\nThe remarks by the Republican senior senator came after other members of the Texas GOP expressed doubts that the president can follow through on his promise to evacuate all American troops, citizens, and allies safely by the end of the month.\r\nU.S. Rep.\u00a0August Pfluger, a San Angelo Republican, on Tuesday condemned the President\u2019s decision not to extend the deadline.\r\n\u201cPresident Biden\u2019s decision to commit to the Taliban\u2019s dictated August 31st Afghanistan withdrawal deadline means he is signing the death warrants of countless Americans and allies who will be left behind,\u201d he said in a statement. \u201cIt is utterly unacceptable that the commander and chief of the greatest military force in the world is allowing the Taliban, a group of terrorist thugs, to order the evacuation of our own citizens.\u201d\r\nOn Monday, a Taliban spokesperson said the U.S. \u201cmust adhere to removing troops from Afghanistan\u201d by Aug. 31, \u201cotherwise, it will be a clear violation.\u201d\r\nU.S. Rep.\u00a0Jake Ellzey, a Republican from Waxahachie, echoed the GOP concerns in a Tuesday press conference.\r\n\u201cNo one can put a date on the accomplishment or successful completion of a military mission,\u201d he said. \u201dThere\u2019s no arbitrary date. The mission is complete when the mission is complete.\u201d\r\nU.S. Rep.\u00a0Joaquin Castro, a Democrat from San Antonio, expressed his support for the administration Tuesday but emphasized the importance of the evacuation mission.\r\n\u201cI think the question for us is have we delivered on the promise of helping United States citizens, people who work at the Embassy and also our Afghan partners who were so helpful for us who literally helped save the lives of our military members during that operation,\u201d he said.\r\nIn spite of the critique from members of Congress, the Biden administration has expressed confidence in its ability to remove Americans out of Afghanistan by the end of August.\r\nThe White House released a statement on Tuesday on Biden\u2019s meeting with G7 leaders that said the administration is on track to meet the withdrawal deadline. \u201cThe President has asked the Pentagon and the State Department for contingency plans to adjust the timeline should that become necessary,\u201d it said in the statement.\r\n\u201cWe are moving each day thousands of people out of Afghanistan into safety in what is one of the biggest airlifts in world history,\u201d a senior administration official stated on a call with reporters on Tuesday.\r\nThe senior administration official also noted the potential for thousands of refugees to be relocated to Fort Bliss military base in El Paso but emphasized that the situation is continuously developing.\r\n\u201cAcross the four installations, Bliss, Dix, Lee, and McCoy. The projection by the defense department is that there can be accommodations for approximately 25,000 [refugees],\u201d the official said.\r\nU.S. Rep. Veronica Escobar, an El Paso Democrat, tweeted Monday that over 650 Afghans have already arrived at Fort Bliss as a part of the ongoing evacuation.\r\nThis story originally published by the Texas Tribune.