Mesa Mayor John Giles, a Republican, has endorsed Vice President Kamala Harris for president following President Biden's exit from the race. In an op-ed for The Arizona Republic, Giles urged Republicans to reject former President Trump, citing his refusal to accept the 2020 election results and his political extremism. Giles highlighted Harris's and President Biden's contributions to Arizona's economy, including substantial infrastructure investments and job creation, and compared Harris's leadership to the late Sen. John McCain. This endorsement, along with support from other Republicans like former Georgia Lt. Gov. Geoff Duncan and Indivisible Lower Merion, signals growing bipartisan backing for Harris. Meanwhile, Pete Buttigieg and Senator Mark Kelly are considered top choices for Harris's vice-presidential pick, with an announcement expected soon, followed by rallies in battleground states.