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Bernie Sanders' win in Wisconsin barely puts a dent in Hillary Clinton's delegate lead.

CLEVELAND, Ohio -- Bernie Sanders added to his win streak by defeating Hillary Clinton in Wisconsin, but barely dented her commanding delegate lead.

While Sanders may have momentum on his side, Hillary Clinton has the more important delegate math on hers. Sanders' Wisconsin delegate gain took a 1/17th deep bite out of Clinton's 255 delegate lead.

The delegate math adds up to Sanders needing to win nearly 60 percent of the remaining delegates to gain the nomination. 65 percent of those delegates are in states where Clinton has commanding leads over Sanders -- New York, New Jersey, Pennsylvania, California and Maryland. And then there's Sanders' super delegate shortfall to boot.

Most of the remaining states are more demographically diverse than states Sanders has won. In Wisconsin, Sanders lost the non-white vote six to four. He dominated the white vote and won independents seven to three. But in addition to the majority of upcoming primaries being in more demographically diverse states, they will also be closed primaries, limited to only registered Democrats.

Despite Sanders string of four primary victories, Trump, Cruz and Kasich have ignored him. Instead they've focused their attacks on Clinton as the likely nominee.

This a sketch of an alternative idea for today's cartoon on Bernie Sanders and Hillary Clinton.

Like Sanders, Cruz will find it difficult to repeat his Wisconsin victory in the upcoming primaries. It's not so much that New York, Pennsylvania and the other upcoming east coast primaries are Trump territory, it's more that they're anti-Cruz territory. In Pennsylvania, Cruz will just have a challenge not losing to the state's native son, Kasich, let alone beating Trump.

Cruz's win in Wisconsin makes it almost certain that there will be a contested convention in Cleveland. But it's far from certain that Cruz will be the lesser of two evils the party chooses over Trump.

Despite his win, Cruz still trails Trump significantly. Cruz has benefited from Trump's circus distracting attention from Cruz's personality, positions and record in the Senate. The more the focus is put on Cruz, the more it's likely voters may come to understand why Cruz was universally despised by both Republicans and Democrats in Congress.