I will post more detailed comments on the debate, but these are just my initial reactions:

1. It was interesting to hear millionaires complain about income inequality. Are they planning on redistributing their own wealth? Bill and Hillary Clinton’s combined net worth is $121 million; Bernie Sanders‘ average net worth is $528,014. Bernie Sanders is not a millionaire, but he is in no way struggling economically. Are the Democrats on the stage prepared to pay the higher taxes needed to pay for all the free things they are suggesting?
2. Let’s take a look at income inequality for a moment. An entrepreneur starting his own business may work as many as 80 hours a week. In the beginning of the business, his hourly pay rate will probably be well below the minimum wage. After a few years of hard work, he may build a million dollar company and make some drastic changes in his lifestyle. The income inequality there is the result of work-effort inequality. The government cannot (and should not) guarantee income equality–what the government needs to protect (not guarantee) is equality of opportunity. Equal opportunity is more likely to be achieved by the government getting out of the way than by the government interfering.
3. The biggest threat to America’s security is not global warming. Global warming has not been proven to exist–much less to be man-caused. I suggest checking Watts Up With That, one of the best scientific websites on climate for specifics.
4. Before we decide that the issue of Hillary Clinton’s emails are a partisan issue, we might want to take a look at the laws broken and the national security compromised. There is sufficient evidence in those emails that Sidney Blumenthal was working closely with Hillary Clinton (after she was told by President Obama not to hire him)–even naming a CIA-operator in an email that was on the private server. Scooter Libby went to jail for less.
5. The National Rifle Association (NRA) is a lobbying group (also a gun safety education group) similar to many liberal lobbying groups. They are  not villains–they are simply protecting the Second Amendment.
6. If the rich are evil (as was implied) and gained their wealth at the expense of everyone else, how do the millionaires on the stage explain their wealth? Was it also evil or was it okay because it was theirs?

Overall, the Democratic debate was a circus. If the Democrats will the next election, it will be because Americans have totally abandoned their Constitution.