Scott Mitchell and Alex Cameron discussed the latest developments in D.C., including budget negotiations, divisions over Ukraine aid, and Sen. Markwayne Mullin’s growing influence with the White House.

National security adviser Mike Waltz; Sens. John Barrasso, R-Wyo., and Tim Kaine, D-Va. WASHINGTON (AP) — ABC’s “This Week” — Rep. Hakeem Jeffries, D-N.Y.; Sen. Markwayne Mullin, R-Okla. ___ NBC’s “Meet the Press” — Ukraine’s president,

"President Trump is the only one who could have prevented this war from taking place," Mullin said during a CNN interview.

NBC News National Political Correspondent Steve Kornacki examines how Americans are reacting to the first month of the Trump administration. Republican Sen. Markwayne Mullin (Okla.) discusses the war in Ukraine as it enters its third year.

Sen. Markwayne Mullin (R-Okla.) says he thinks people need to “trust the process” in President Trump’s peace talks with Russian and Ukrainian leaders. “Right now, people are dying every single

Sen. Markwayne Mullin cast doubt on suggestions from Ukrainian President Volodymyr Zelenskyy that Russian President Vladimir Putin could invade NATO allies

Oklahoma Republican Sen. Markwayne Mullin told NBC's "Meet The Press" that he agrees with the Trump administration that the U.S. should only remain part of the NATO Alliance as long as it is in our national interest: KRISTEN WELKER: Let me zoom out and ask you big picture.