WASHINGTON - Three months after a power shifting election, a majority of Americans still disapprove of Congress — a sign of public impatience with the new Democratic majority even among party loyalists. Still, an Associated Press-Ipsos poll conducted this week shows that Congress' public image has improved slowly but steadily since the November elections when Iraq, corruption and partisan fighting drove congressional approval ratings below those of President Bush. According to the poll, 65 percent of those surveyed disapprove of the way the president is handling his job, slightly up from his disapproval ratings last month. As for Congress, 58...