That is not true. His input is not public for one. How he would support an Evangelical Christian is beyond me to believe. Her church's beliefs are more Pro-life than most of the Freepers. This does not pass the smell test.
I'm in the camp of "Reid didn't necessarily support her, but suggested she has the qualities that DEMs would find agreeable, in general. To wit, not on the 'must filibuster/known conservative jurist' list, accomplished, female."
Reid has had professional contact with Miers during the selection process that resulted in Roberts andin Miers, and in matters other than selection of nominees. I believe he at least informally indicated that she would not trigger DEM conniptions on the day of announcement ;-)
Reid's speech when he stood with Miers on Monday was toally non-substantive. He reiterated her career and said she was personable, and she answers telephone messages promptly. Mostly, Reid talked about the confirmation process, which he was looking forward to, and noted would be conducted in a civil and respectful manner.
Other than that, there's Reid's statement, which sounded very supportive:
“I like Harriet Miers. As White House Counsel, she has worked with me in a courteous and professional manner. I am also impressed with the fact that she was a trailblazer for women as managing partner of a major Dallas law firm and as the first woman president of the Texas Bar Association. “In my view, the Supreme Court would benefit from the addition of a justice who has real experience as a practicing lawyer. The current justices have all been chosen from the lower federal courts. A nominee with relevant non-judicial experience would bring a different and useful perspective to the Court.“I look forward to the Judiciary Committee process which will help the American people learn more about Harriet Miers, and help the Senate determine whether she deserves a lifetime seat on the Supreme Court.”