While there are a few areas of agreement between Mr. McCain and Democrats, immigration is the largest issue on which Democrats and McCain agree. While the current Republican Party platform is the most anti-immigrant one in memory, there were news reports that Mr. McCain, who has a long track record of being pro-immigration, tried to make it more immigration-friendly and failed. This is the issue on which he is most likely to stab his party's anti-immigrationist wing in the back both in his political interests and due to his own convictions (Mr. McCain had to fight his party's anti-immigrationists tooth and nail during the Republican primaries). We expect to see almost all of the original McCain-Kennedy bill become law during the first six months of a McCain Presidency. [E.A.]Mark Krikorian also comments on this analysis.
UPDATE: (via Hot Air) In an interview with Univision, McCain seems to deny voting for any fencing along the southern border and continues to assert his belief in the value of a virtual fence. The interviewer brings up Obama's pledge to immediately introduce "comprehensive immigration reform" if he becomes president (italics added):
-Senator Barack Obama told us in an interview that he would present a comprehensive immigration reform to congress during the first year. Could you match that?
-Sure, I would do it in the first day, but I was the one who led, I was the one who led with Senator (Ted) Kennedy, a great political risk to myself. Senator Obama tried to kill it, because he was doing what the unions wanted. The unions in America do not want a temporary worker program, so Senator Obama came to the floor and had an amendment that would have basically killed immigration reform, because it was a fragile coalition between republicans and democrats. So, don't let Senator Obama get away with saying that he supports comprehensive reform, when he tried to kill it.