(snip) A conflict that has been going on between local Arizona Republicans came to an end in the wake of the shooting in Tucson on Saturday when Arizona's Republican District 20 Chairman Anthony Miller and several others chose to resign. The Arizona Republic reports that Miller, 43, a former campaign worker for Sen. John McCain who was re-elected to a second one-year term last month, has been concerned for his family's safety by constant verbal attacks and blog posts from some local committee members with tea party movement ties. (snip) Miller, the first and only African-American to hold the party's...