Independents are on thing, but the Democrats would come over to vote for Cruz or Kasich because they want to face either Cruz or another establishment stooge in the general election. Just like in Milwaukee earlier this week.
New York Republicans however are squarely in Trump's lane. Kasich will finish second, Cruz will perhaps find double-digits but there's a good chance he's under 10%.
CLOSED primary. No Indie or Dem can vote for any Repub candidate. In order to change party, you have to do so more than six moths BEFORE the primary.
Lots of Bernie students are pissed - they missed the deadline to select the specific party. Some were reg in the Liberal party, Green Party, Indie, No Party selected - so they can’t vote. Some waited too long to even register (first timers) - lots of wailing going on now in NY.
NY Indies are people who don’t like any structured party and usually make up their mind at the last minute. They can vote in some local primaries - but never in a presidential.
Dems can’t crossover & vote for the other guy; it’s a —closed primary—!!