Within the first 20 days of the Trump administration, President Donald Trump made and executed several executive orders to fulfill promises made during his campaign.

Trump signed three executive orders regarding immigration and his proposed plans for this issue, one of the most discussed of the Trump presidency.

Two of the executive orders banned individuals of seven predominantly Muslim countries from entering the United States for 90 days due to what Trump assesses as terrorism risks and prevented refugees from those countries from entering the country for 120 days.

“My parents came from Iran, so they wouldn’t have been able to come [if the ban had been implemented in the past],” Vedaad Shakib (12) said. “I feel like there are other measures that can be taken to prevent terrorism in the U.S., and the measures that Trump has been taking are very extreme and not really rational, honestly. I don’t agree with the immigration bans.”

Another of these executive orders enforces the tightening of deportation rules within the United States. Now, undocumented immigrants who have become public dependents within five years may be deported.

Trump, who has voiced opposition against this program throughout his campaign, has also begun the process of overturning the Affordable Care Act, also known as Obamacare, by directing leaders of the health and human services to start dismantling the program. While only Congress has the power to repeal the act, the order signed by Trump starts a path for the eventual overturn of it.

“We’re going to see a lot of changes forthcoming with a Republican majority in Congress and a Republican president, as you would see if it was a Democrat president and a Democrat majority in Congress,” AP U.S. Government and Politics teacher Carol Green said. “An example of this would be looking at the changes being made to the Affordable Care Act.”

Trump has also signed an executive order to combat ISIS, claiming to have developed a detailed plan to fight the terrorist group with its status as one of Secretary of State Rex Tillerson’s most prioritized issues.

Trump has taken action for a proposed wall that will sit on the border between the U.S. and Mexico as well. His executive order regarding the wall calls for the start of planning and funding for the project as well as placing an extra 5,000 troops near the Mexican border.

“You have to ask yourself, ‘what’s the purpose of the wall?’” said former upper school DECA advisor and current Valley Christian business teacher Chris Thompson. “It’s to keep bad people out, and there’s no other way to do it. Any sane country is going to have borders, and that’s all it’s about.”

In terms of international trade, Trump has signed an executive order to withdraw the United States from the Trans-Pacific Partnership, a trade agreement between the United States and several other Pacific Rim countries with an overarching goal of securing international ties within these countries and creating global economic growth.

Taking America out of the agreement hurts other countries involved; however, Trump’s decision to exit the TPP was based on the fact that him and critics believe that America’s participation in the trade deal was at the expense of American jobs and economic growth.

Trump has also granted workers the ability to finish construction on the Dakota Access Pipeline and the Keystone XL Oil Pipeline, under the watch of the Energy Transfer Partners and TransCanada.

Although not executive orders, Trump has also made serious changes to the administration with nominations of his cabinet and his nomination of Neil Gorsuch to the Supreme Court, where he would replace the late Justice Antonin Scalia.

He also fired former United States Deputy Attorney General Sally Yates due to her opposition to his immigration ban.