WASHINGTON, Oct. 31 -- Sen. Markwayne Mullin, R-Oklahoma, issued the following news release: Senator Markwayne Mullin (R-OK) joined U.S. Senator Jim Risch (R-ID) and nine of their Senate GOP colleagues in sending a letter calling out President Joe Biden and Vice President Kamala Harris for fueling a national security crisis at the southern border through a series of destructive executive orders. "Instead of addressing the flow of illegal immigration and illicit drugs across our borders, your a  more