ted cruz dpeeted donald trump winning almost all of the state's delegates. bernie sanders topped hillary clinton winning more than half of the delegates and tightening the race to the nomination. david shuster has more. >> we won in wisconsin! [ cheers and applause ] >> reporter: for democrat bernie sanders and republican ted cruz, it was the night both nomination challengers had been hoping for. >> god bless the great state of wisconsin. [ cheers and applause ] >> reporter: with nearly all of the wisconsin primary votes counted cruz soundly dpeeted republican front runner, donald trump. the outcome means trump's path to the nomination will be more difficult, because his odds of winning enough delegates before the summer convention are now slim. trump, who campaigned hard in wisconsin though he stopped short of putting on a cheese head did not speak tuesday night. but cruz was banking on a contested convention celebrated in milwaukee, loudly. >> three weeks ago the media said wisconsin was a perfect state for donald trump. [ booing ] >> but the hardworking m

donald trump. cruz called it a turning point in the republican presidential race. >> reporter: it was a desiegsive victory for ted cruz in wisconsin, dpeeting uner, donald trump in the state's primary. it was a win cruz promised would change the course of the republican race for the white house. >> tonight was a bad night for hillary clinton. [ cheers ] >> it was a bad night in the democratic primary, and it was an even worse night for her in the republican primary. [ cheers and applause ] we are winning because we're uniting the republican party. >> reporter: the cruz campaign claims the latest victory will propel him to win future state contests and cause trump to fall short of the candidates needed to win the nomination before the july republican convention. it's a convention where cruz hopes to become the party nominee to take on democratic front runner, hillary clinton. but the path to her party's presidential nomination has also become more complicated. bernie sanders was the winner of the democratic contest in the midwestern state. >> with our victory tonight in wisconsin, we have now won seven out of eight of the last caucuses and p