There are a few Presidents that did not have a Vice President.
John Tyler / 1841 - 1845 - no Vice President
Millard Fillmore / 1850 - 1853 - no Vice President
Andrew Johnson / 1865 - 1869 - no Vice President
Chester A. Arthur / 1881 - 1885 - no Vice President
There are Presidents that have gone their terms without a Vice President, but listed above are the ones that never had one.
<span>At the end of World War I, President Wilson offended members of the United States Senate by travelling to Europe and opposing the League of Nations as well as opposing the views of Henry Cabot Lodge, thereby excluding them from the peace process. President Wilson was the President of the United States during the first world war. He tried to keep the USA out of the war but ultimately had to join the Allies against Germany in 1917. He also help broker a peace treaty with the USA joining the League of Nations. The US Congress vetoed this idea.</span>
Constitutional monarchy means that the parliament or the legislature makes the rules and the King of the country goes along with those rules. King James II of England refused to follow the constitutional monarchy and was kicked out through the revolution of 1688. This gave rise to constitutional monarchy in England.
What’s the question, I don’t understand that, sorry.