A Republican has announced his intention to challenge Democratic Congressman Jim Himes for the seat in the 4th District this November.  Investment firm founder Harry Arora has filed paperwork with the state to seek the GOP nomination.  Himes was first elected to the seat serving Ridgefield and southern Fairfield County in 2008 and is seeking a 6th term.  Arora, a 48-year old Greenwich resident, criticized the Affordable Health Care Act and said on his website that there have been too many attacks on industries like financial services and insurance.