Many of which unions have endorsed Clinton.
Couple of problems here-Iowa is very undemocratic in being a caucus and thus had a class bias against economically marginal and less-educated voters which primaries such as New Hampshire have less of a problem of. Not to mention in general Iowa is a pretty shill and low-energy state that was always one of the worst states for TRUMP due to its combination of Midwestern evangelical moralism and annoying “Minnesota nice” culture (which the Mormon apostates share in spirit) who shrink from the Donald’s bluntness and sincerity. The more hardass regional cultures of New Hampshire with its large bloc of blue-collar ethnic Catholics and the Scotch-Irish rednecks of both states will be far more amenable to TRUMP’s message of national greatness and genuine principle compared to the undisguised plutocratic panderings of the two Cubans in this race.