I should note that the government does a lot of stuff. If you have a cause you feel strongly about, whichever side, it's worth taking some time to understand which ones you can actually (at least theoretically) have a direct impact over, and that's generally in the regulatory arena, or administrative law arena. Agencies don't make laws, they pass rules and regulations, and those that adds legal obligations to pre-existing ones in a substantive way are subject ot note and commentary under the Administrative Procedures Act. This means you, even if you're not an American citizen but have some sort of interest at stake, can and should voice your concerns. It's in fact one of the only ways the average person can at least reach the decision makers that were not elected and don't owe their jobs to anyone but the president.

In those cases, the specific site to follow would be https://www.regulations.gov/ and the api docs are at https://open.gsa.gov/api/regulationsgov/ and at least most administrations (last one excepted, although they didn't seem to have anyone on staff in the executive branch who was familiar with the APA to begin with) are pretty good about at least reading, if not agreeing - sometimes cruelly and sometimes nonsensically - to your comments.

It's good to see what the government is doing, but in a sense if you want change, that's already too late. Focus on the regulatory aspects of things, and you can make a real difference, possibly. The CFR feed on the RSS page shows how regulations are routinely promulgated, and it's not an ideological thing necessarily: DHS/ICE is an agency just like the FDA or EPA. Rules are, after all, rules.