The ACLU is always looking for attention and a way to stir things up. The fact that they are tracking what Trump says isn't news at all....they are always against anyone who is remotely conservative. I don't agree with everything about Trump, but the fact remains that Americans want and need a big change.
Donald Trump's unconstitutional thoughts will not only shake up America, but harm the relationships between countries and Allies. His presidency would not only have the ACLU concerned but many other groups as well since his thinkings are harsh and driving the country apart. His ideas regarding how to fight things is changing the world and driving more separation from would once have been united.
A Trump presidency would be a nightmare of epic fail do portions. Eventually everyone who Trump is suspicious of or just does not like would be rounded up al la nazi Germany in the 1940's. This would have a devistating effect on America and the rest of the countries around the world.
Regardless of your political views, Trump is a poor candidate simply because he doesn't have much knowledge of the topics a President must know about. His experience is in real estate development, which is largely irrelevant. He also hasn't shown the capability of knowing his limitations and relying on the advice of those who do know.