The latest Des Moines Register poll shows Texas Senator Sen. Ted Cruz surging to a 10 point lead over his nearest rival, Donald Trump, among caucus goers in Iowa. Cruz's October surge is the largest jump measured over 5 Presidential campaigns. Cruz currently has the highest favorability rating of any Republican candidate for President. Cruz has 31 percent support, followed by Donald Trump with 21 percent. Since October, Cruz has gained 21 points while Trump has gained just 2 percent. Neurosurgeon Ben Carson is in 3rd place with 13 percent, down 15 points since October. Florida Sen. Marco Rubio (R-FL)79%is...