Graves returns to the White House for a state dinner; Jeremy buddies up with tech billionaire Jonathan Dalton, then springs a paternity test on him; Isaiah prepares a sushi feast for Katie; Sammy takes over as lead singer of the bar band.

Graves takes over baby duty when Olivia becomes frustrated; Margaret commits a televised blunder as she faces off against Jerry North; Isaiah and Katie become more passionate; Jeremy receives the Dalton paternity test results.