A president can start a war under relatively specious circumstances, and once American soldiers are under fire, Americans will support the soldiers and support the president.
Theodore Roosevelt, when he was out of office, he would do things to draw attention. But when you are president, you don't need to shout. When you are in office, you are the story.
Members of Congress are somewhat reluctant to tangle with a president who seems to have the backing of the American people.
When the Constitution was written in 1787, there was this supposition that American politics would be above party. The people who would staff the positions in government would have the interests of the country, or at least their states and congressional districts, at heart, and so they wouldn't form permanent political parties.
There is a certain kind of sobering, civilizing effect that being president imposes on people. There is a certain kind of dignity with which you comport yourself. As an observer of the presidency, I have to wonder if Trump would follow that pattern.
The shelf life of a seventh-year State of the Union address is about five minutes. Presidents can propose stuff. They're probably not likely to get it done.
