Well, if he only spoke at some event, this might not matter too much. If he expresses strong support for their missionary work in the Jewish community, that would be more serious, especially if they can get it on tape.
"Messianic" Judaism is as much an oxymoron as "kosher pork". They are considered apostates among Jews if of Jewish origin -- or frauds if they are missionaries not of Jewish origin (some of these fellows had no idea of the significance of Shema Yisrael and did not know what a bagel is). One need not obey kosher dietary laws to be Jewish (Reform), but accepting Jesus as Lord and Savior and especially the Christian Trinity defines one as a Christian.
Jews are not going to vote anywhere near a majority for any Republican nominee for President. The only place in which the difference between the Jewish vote going 70% for President Obama and going 90% for President Obama will be those states likely to be close anyway. It could be the difference between winning and losing Arizona, Indiana, and Missouri.
I have doubts as to whether most messianic jews believe in trinity doctrine.
