WASHINGTON — The Obama re-election team released the names of more than 244 mega-fund-raisers Friday — including 31 who raised at least $500,000 to bankroll the Obama 2012 campaign and the Democratic National Committee. The fund-raisers are known in the political business as “bundlers,” people who use their extensive networks to raise money on behalf of a candidate. The Obama for America campaign calls their bundlers “volunteer fund-raisers.” The Obama team disclosed the 244 bundlers (in a few cases couples or business partners were counted as one bundling unit) who collected at least $50,000. No one from the Chicago area...