Democratic presidential hopeful Hillary Clinton shrugged off calls to drop out of the race during a stop in Sioux Falls today.  Clinton, speaking in an airport hangar, said the Democratic Party will be stronger as the process continues. She says it's exciting that on June 3rd, the votes in South Dakota and Montana -- the last presidential primaries -- will count.

Clinton pressed major campaign themes, stressing a need to change the energy policy and ramp up work on renewable sources. She also said oil companies should be made to put up ethanol pumps at gas stations.  She criticized her rival, Barack Obama, who has dismissed her proposal for a three-month gas tax holiday this summer. Clinton said the average family would save $70 -- and that truckers would save a total of $2 billion.  Clinton also said she would end the war in Iraq responsibly and with honor.