Well, Wisconsin was sort of sad, but if you make it there (NY), you can make it anywhere...
Trump currently has a 30+ point lead over Kasich and Cruz is in third place. For Republicans, I doubt we will see a repeat of Wisconsin on April 19. But Cruz definitely wants to stay competitive (even if he can't beat Trump in these east coast states). Trump hurt himself badly these last few weeks.
Hillary does not have quite the commanding lead over Bernie in New York. He could catch her (and that would be very bad for Mrs. Clinton). The math is still bad for Bernie to clinch, but that could be enough to go into a contested convention on the Democrat side.
EBL: Democrats Riding the Subway, The Battle for Wisconsin, NEGAN 2016, and #FeelTheBern (Hillary will expect Bernie to do the right thing)
Instapundit: Stephen Green: Thank God for Bernie Sanders? and Wyoming Coal Miners who lost their jobs protest Hillary Clinton
RedState: Civil War with Team Trump and Can Cruz Win New York? (those New York values comments Cruz made last winter might come back to haunt him)
Byron York: Ted Cruz's next move after Wisconsin
American Power Blog: Complications for Trump
TOM: Cruz Sanders Win Wisconsin