The one-two punch of the first Democratic primary debates have concluded, with the second stage of ten candidates debating on NBC News last night. They included former Vice President Joe Biden, Sen. Bernie Sanders of Vermont, Sen. Kamala Harris of California, South Bend Mayor Pete Buttigieg, Sen. Kirsten Gillibrand of New York, tech entrepreneur Andrew Yang, Sen. Michael Bennet of Colorado, former Gov. John Hickenlooper of Colorado, author Marianne Williamson, and Rep. Eric Swalwell of California.The second debate’s gravitas came from having the first and second-place candidates, Biden and Sanders respectively. The other candidates on stage took opportune moments to criticize the frontrunners and contrast them with their positions and records.One of the most important issues discussed was health insurance and health care. Sanders and Harris joined Sen. Elizabeth Warren and New York City Mayor Bill de Blasio in calling for the criminalization of private insurance plans in favor of a government-provided plan only. Furthermore, all ten candidates on stage agreed that their single-payer healthcare plans would also include medical coverage for illegal aliens residing in the United States. Sanders said his health-care plan would increase taxes on middle class Americans, but it would be a net benefit due to the increases in government services.Sanders, the only self-described democratic socialist on the stage, was criticized by Hickenlooper and Bennet for being too radical to be electable or effective. Sanders responded to a question by moderators intoning whether his recent position switch on gun control was genuine.