Democratic presidential candidate Bernie Sanders touted his plan for tuition-free college, ending income inequality, as well as responding to Hillary Clinton’s criticism during a rally at Iowa State on Monday.

Sanders, the independent senator from Vermont, spoke at Stephens Auditorium as part of the Presidential Caucus Series. 

With Sanders only 2 percentage points behind Clinton in the latest Bloomberg Politics and Des Moines Register poll, Clinton has increased her criticism of Sanders.

Clinton recently said Sanders’s health care plan would cause the country to “start over” and destroy all of the hard work it took to get the Affordable Care Act.

“The Affordable Care Act has done a number of many positive and important things,” Sanders said.

Sanders listed those positives, which included making those with pre-existing conditions insurable, allowing people to be on their parent’s insurance untill the age of 26 and insuring an additional 17 million Americans.

“We have yet a long way to go,” Sanders said. “There is so much more to be done.”

Sanders supports universal health care, allowing for all U.S. citizens to be insured through the government.

“I believe health care should be a right for all people,” Sanders said.

Sanders said Republicans wanted to cut off insurance to 27 million people covered by Medicaid or the Affordable Care Act in the last congressional budget plan.

“What the Republicans did in their budget is essentially go to war against the elderly, the children, the sick, the poor and working people,” Sanders said.

Republicans were not the only ones the Vermont senator called out. Sanders also criticized the Walton family of Walmart.

Photos: @BernieSanders speaks at Iowa State University in Ames, Iowa. #IAcaucus pic.twitter.com/ZhvO3mCdY4

— Alex Hanson (@theAlexHanson) January 25, 2016

“The middle class of this country is subsidizing the Walton family because they are not paying their workers a living wage,” Sanders said. “I say to the Walton Family, ‘Get off of welfare. Pay workers a living wage.’”

Sanders said the family owns more wealth than the bottom 40 percent, and that this type of inequality is immoral. Sanders is in support of raising the minimum wage to $15 an hour.

The government’s money is being invested in the wrong areas when it comes to the youth in United States, Sanders said.

“In my view, we should be investing in education and jobs for our young people not jails and incarceration,” Sanders said.

He promised that by the end of his term as president the country will not have more people incarcerated than any other country, and it will be on its way to having the best educated population on Earth.

“We have a broken criminal system,” Sanders said.

One of his first ways of fixing that system would be to provide model police practices training to officers as well as holding officers accountable if they do break the law.

“We have got to end the militarization of local police departments,” Sanders said.

Another important component to fighting mass incarceration is the epidemic of drug addiction in the United States, Sanders said.

“What we must understand is that addiction and substance abuse is a health issue, not a criminal issue,” Sanders said.

Sanders said the Federal Controlled Substance Act treating marijuana the same as heroin is senseless.

He added it is a racial issue as well with four times more African Americans being arrested for marijuana use than whites, even though they smoke it at the same rate.

“So what I believe and what I have introduced legislation to do is to take marijuana out of the Federal Control Substance Act,” Sanders said.

Sanders urged young voters to get out and caucus Feb. 1.

“Democracy is not a spectator sport,” Sanders said. “Don’t complain unless you’re prepared to fight back.”

Melissa Flood, junior in electrical engineering, said she plans to caucus for Sanders.

“I like the fact that he has all his donations from just the average American,” Flood said. “And I like how he wants equal opportunities for everyone.”

German Barcenas, senior in mechanical engineering, is unable to caucus for Sanders because he is not an Iowa resident, but hopes to be able to vote Sanders into the White House.

“I honestly do believe in his political revolution of political participation, and social and economic equality,” Barcenas said.