President Biden faced a challenging day grappling with the first US soldiers being killed since the start of the conflict in Gaza. “We had a tough day last night in the Middle East. We lost three brave souls in an attack on one of our bases, “ said Biden during a campaign stop in South Carolina on Sunday. “And we shall respond,” Biden added after a moment of silence. The White House confirmed that President Biden and Vice President Harris were briefed by their national security team this afternoon on the latest developments regarding the attack on a small US base in Jordan, near the border wit…