Democrata Don't Expect Knockout Win

The month long political fight in Texas and Ohio concludes in today's primaries, but the campaigns of U.S. Sens. Hillary Rodham Clinton and Barack Obama signaled Monday that neither expects a knockout punch for the Democratic presidential nomination.

The expectations were lowered because the polls in Texas and Ohio showed the race was too close to call. Plus, the complex system of Texas delegates being chosen by both popular vote and through caucuses makes it possible for the popular vote winner to come up short in delegates.

A tracking poll Monday showed Clinton leading Obama 46.6 percent to 43.5 percent in Texas and essentially tied in Ohio: Clinton, 44 percent; Obama, 44.4 percent. The margin of error was plus or minus 3.4 percentage points in both surveys. The Houston Chronicle, Reuters, C-Span tracking polls were conducted by Zogby International.