[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/09/02/art.mccainpalin.ap.jpg caption="McCain is defending his choice of Palin."](CNN) - Presumptive Republican nominee John McCain defended his campaign's vetting of newly named VP candidate Sarah Palin Tuesday, amid a stream of revelations about the Alaska governor that could potentially harm the GOP presidential ticket.
"My vetting process was completely thorough and I'm grateful for the results," McCain told reporters in Philadelphia.
The comments come a day after Palin announced her 17-year-old daughter was pregnant and news surfaced the Alaska governor had hired a lawyer weeks ago to act on her behalf as state legislators investigate whether she may have abused her power in the firing of the state’s police chief for refusing to fire her ex-brother-in-law, a state trooper.
Speaking on Fox News earlier Tuesday, former top Bush aide Karl Rove echoed McCain's comments that Palin was fully vetted.
"They knew all of it," Rove said of the recent revelations on Palin.
McCain has previously faced fire from Democrats over the fact the Arizona senator only met with Palin once in person before offering her the No. 2 slot on his ticket.
UPDATE: Speaking with reporters in Ohio Tuesday, McCain reiterated his support for Palin.
"I just want to repeat again how excited I am to have Sarah Palin, the great Governor of Alaska, as my running mate," he said. "America's excited and they're going to be even more excited once they see her tomorrow night. I'm very, very proud of the impression she's made on all of America and looking forward to serving with her."