The Trail: From New Hampshire to the White House WMUR

Democratic hopeful Julián Castro says he would work hard on everybody's behalf. Plus, Democrat John Delaney, who has been a declared candidate since July 2017, plans to press on and stand out in an increasingly crowded field.

As Washington Gov. Jay Inslee considers a run for president, he feels climate change should be a big issue in the 2020 election. Plus, Democratic presidential hopeful Andrew Yang --his interview aired Jan. 14 -- advocates for a unversal basic income.

It's 2019 and New Hampshire's first-in-the-nation presidential primary campaign is gearing up quickly. We take a deeper dive into what has already become a historically diverse field of presidential hopefuls.

It appears President Donald Trump will face a primary challenge from at least one Republican, as former Mass. Gov. Bill Weld has announced the formation of an exploratory committee. Plus, Democratic hopeful Kirsten Gillibrand explains the evolution of her positions on guns and immigration. Meanwhile, former Colorado Gov. John Hickenlooper says he has a plan to deal with running against the president, who he calls a "bully." Also, Rep. Adam Schiff was recently in New Hampshire to discuss the latest on the investigation into Russian meddling in the 2016 election. And finally, the head of the Democratic Party in New Hampshire, Ray Buckley, says he doesn't think the primary date next year will be moved up.

Fresh off declaring he's running for president, Bernie Sanders spoke with WMUR about what New Hampshire means to his candidacy as a whole. Plus, Kamala Harris spoke one-on-one with Adam Sexton on Feb. 18 about her campaign and key issues including the opioid crisis. Finally, Rep. Tim Ryan is considering his own run for president. He tells WMUR it's important for Democrats to reconnect with middle America.

Democratic presidential candidate Andrew Yang answered questions directly from New Hampshire voters in the first installment of the Conversation with the Candidate series.