Quote of note:

Colonel Killian also wrote in a memo that his superiors were forcing him to give Lieutenant Bush a favorable review, but that he refused.

WASHINGTON, Sept. 8 - President Bush's Vietnam-era service in the National Guard came under renewed scrutiny on Wednesday as newfound documents emerged from his squadron commander's file that suggested favorable treatment.

At the same time, a once powerful Texas Democrat came forward to say that he had "abused my position of power" by helping Mr. Bush and others join the Guard.

Democrats also worked to stoke the issue with a new advertisement by a Texas group that featured a former lieutenant colonel, Bob Mintz, who said he never saw Mr. Bush in the period he transferred from the Texas Air National Guard to the Alabama Air National Guard.

The documents, obtained by the "60 Minutes" program at CBS News from the personal files of the late Lt. Col. Jerry B. Killian, Mr. Bush's squadron commander in Texas, suggest that Lieutenant Bush did not meet his performance standards and received favorable treatment.

One document, a "memo to file" dated May 1972 , refers to a conversation between Colonel Killian and Lieutenant Bush when they "discussed options of how Bush can get out of coming to drill from now through November," because the lieutenant "may not have time."

The memo said the commander had worked to come up with options, "but I think he's also talking to someone upstairs."

Colonel Killian wrote in another report, dated Aug. 1, 1972, that he ordered Lieutenant Bush "suspended from flight status" because he failed to perform to standards of the Air Force and Texas Air National Guard and "failure to meet annual physical examination (flight) as ordered."

Colonel Killian also wrote in a memo that his superiors were forcing him to give Lieutenant Bush a favorable review, but that he refused.

"I'm having trouble running interference and doing my job," he wrote.