The Senate campaign landscape got a morbid shakeup with the death of Sen. Lindsey Graham (R-SC). First elected to the Senate in 2002 after eight years as a House member, Graham died July 11 after a “brief and sudden illness,” per his Senate office.A longtime foreign policy hawk and ally of the late Arizona Sen. John McCain, the 2008 Republican presidential nominee, Graham underwent one of the biggest transformations of any modern political figure. Graham ran against President Donald Trump for the 2016 Republican presidential nomination, and their fight was acrimonious. After coming up woefully short in the GOP primary season, Graham was for months a virulent critic of the future president. But once Trump was in office for his first nonconsecutive term, Graham became one of his most loyal allies. That alliance only intensified once Trump returned to office.Now the Trump administration is without a “Senate whisperer” of sorts to guide its legislative agenda on Capitol Hill through perilously small congressional majorities. Graham, who was 71, is among 303 senators who have died in office, per the Senate Historical Office. Including Graham, seven incumbent senators have died over the past 20 years.