Who will be Karoline Leavitt's biggest foes in the briefing room?

Karoline Leavitt introduced herself to the world on Tuesday and immediately made waves - and perhaps some enemies. Scroll down for video: Karoline Leavitt introduced herself to the world Tuesday, and immediately made a series of waves - and perhaps enemies The youngest-ever White House press secretary expertly channeled Donald Trump during the afternoon briefing - and clashed with several seasoned correspondents Kaitlan Collins An obvious answer to the question of who Leavitt's foes may be is Collins, who is already following in the footsteps of former Chief White House Correspondent Jim Acosta. Bruce, ABC News' chief White House correspondent, previously covered the Biden administration, and spearheaded the network’s coverage of the first impeachment trial of President Trump. Bruce, ABC's chief White House correspondent, previously covered Biden administration, and once the network’s coverage of the first impeachment trial of Trump. She also covered the president's second impeachment in 2021, and the probe into Russian election interference Nancy Cordes Another front-row foe emerged in the form of Cordes, CBS News' chief White House correspondent.