I did some research into the immigration issue. I believe that most if not all of the kids that crossed the border recently are going to be allowed to stay. This has less to do with the President and more to do with Congress. Congress passed laws years ago that provides illegal aliens enormous latitude. For example, most illegals just can't be sent back home. They are entitled to a hearing before an immigration judge. If the hearing doesn't go their way they then may apply for a hearing before the Bureau of Immigration Appeals.
When it comes to children there is this unwritten wink and a nod that grants them papers to reside in the U.S., at least "temporarily". The primary reason is minors cannot just be deported. They must be released to someone that can care for them. If no one is willing to take responsibility in their home country then......
In addition before the current crisis, whole families that crossed the border illegally are set up in special detention centers. By regulation these centers are equipped with sporting equipment so the kids don't get bored and are able to exercise. Along with free medical, dental care and schooling. Then there are the pregnant women that are here illegally simply to have their babies born here as they (babies) are granted automatic citizenship.
Another category are the people that come here legally on visas that simply never return home. They too can apply for permanent residence. Hundreds of them marry U.S. citizens in order to remain in the country. Most of them fraudulently in my opinion. It's funny because the average citizen would blame ICE regarding this issue when in actuality ICE doesn't issue visas. Visas are issued by the State Department. Besides there's another entity involved in this mess and that is Citizenship and Immigration Services.
Due to the fact the immigration courts are overwhelmed, thousands of illegals are given what's called a Notice to Appear. It is a document that basically says you're here illegally, however we will allow you to stay if you promise to later come back for a deportation hearing. Homeland Security personnel view this as a joke and refer it as a notice to disappear. Because rarely do illegals come back as instructed.
Consequently a President, and by extension the Executive Branch just can't deport someone until all legal avenues have been exhausted which could take years. So for those that are blaming the current President for this mess, you might want to redirect your ire to your Congressional representative.