The UN’s treaty, the Convention on the Rights of the Child, known as CRC, will certainly come up for a ratification vote in the Senate with a president and secretary of state who believe in it strongly. The purpose of the treaty is to ensure that children have human and civil rights in all countries. The US signed the treaty in 1995, but the Senate never ratified it, citing objections from conservative groups. A two-thirds majority is required for ratification of international treaties like this.
Objections focus on some of the rights guaranteed to children. That is, the government could step in and prevent a parent from homeschooling their child if the child objects and contact the appropriate government authority. The government could even prevent a decision to keep a high school senior, 17-years-old, out of his or her prom if the parent determined that grades were too low. In other words, parents would be less responsible for the actions of their children under 18.
Most nations have ratified it. In fact, the US and Somalia may be the only nations that haven’t ratified it, and Somalia hasn’t ratified it because no one’s really certain what government body actually has the authority to ratify it there, in what President Obama called a “lawless land.”