Jim Lamon uses personal fortune to build war chest for Arizona GOP Senate bid

Wealthy businessman Jim Lamon is poised to report a more than $7 million war chest to invest in his bid for the Republican nomination for Senate in Arizona after pouring $5 million into his campaign in the first quarter.

Lamon’s first-quarter filing with the Federal Election Commission, due April 15, is expected to show additional contributions from outside donors, his campaign revealed to the Washington Examiner on Thursday. The debut candidate is embroiled in a competitive primary as a handful of Republicans battle for the right to challenge Democratic Sen. Mark Kelly...