Hillary Clinton has 66 percent approval

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WASHINGTON, May 22 (UPI) -- U.S. Secretary of State Hillary Clinton enjoys a 66 percent favorable rating among Americans, Gallup poll findings suggest.

While the rating has shifted some over the past 20 years, Clinton has maintained a generally positive impression on the American public, the USA Today/Gallup poll said Tuesday.

Her highest rating, 67 percent, was reached in late 1998 after her husband, former President Bill Clinton, was impeached by the U.S. House on charges related to his relationship with a White House intern.

Hillary Clinton's average favorable rating since 1992 has been 53 percent, with higher numbers seen during her first few years as first lady, late in her husband's presidency, during her time as a U.S. Senator from New York and now, during her time as Secretary of State. Her rating dropped slightly to 50 percent while she was campaigning against Barack Obama for the Democratic presidential nomination.

The USA Today/Gallup poll, conducted May 10-13, surveyed a random sample of 1,012 adults over the age of 18 by telephone. The margin of error was plus or minus four percentage points.