Live updates: GOP scrambles to plot course without Graham; Iran, US fight over Strait of Hormuz

The Senate returns Monday to a different landscape, with the sudden death of Sen. Lindsey Graham (R-S.C.) top of mind. Graham, 71, died unexpectedly early Sunday, and preliminary reports point to an aortic dissection. By the afternoon, politicians in South Carolina and Washington were maneuvering to figure out his successor, both in the short term…