Hillary Clinton and Barack Obama are running neck-and-neck in Texas, according to a poll conducted Feb.17-19. The margin of error is 4 percent. Clinton has 46 percent to Obama’s 45 percent, with 9 percent undecided. On the Republican side, John McCain easily outdistances Mike Huckabee, 52 percent to 30 percent with home state Rep. Ron Paul at 9 percent. As many other state and national polls are indicating, the economy has shot to the top of the list for voters of both parties, in this case replacing Iraq. This is at least the third poll this week to show the Texas contest as a toss-up on the Democratic side.