Please allow me to quote Rule 13 in Chapter 16 "Success" Rules from The is the road to stock market success by George Seamans.
Rule 13. Do not permit your opinions about political matters to influence your market judgment. You may have a "soft spot" for the under-dog and sympathize with the "New Deal", "oppressed peoples", "labor", and other "causes" that is your "private" affair but marketwise consider speeches by the President objectively so that you may gauge every possibility and reaction. What may be perfectly "right", and even "noble" from a "social, moral and religious" standpoint, can be 100% wrong from a market standpoint ("freedom from want" and "soak the rich", for example).
Learn to exercise professional judgment as regards your stock market operations. Do not allow political leanings to interfere with your trading. You cannot ride two horses at the same time. If you could you would be in the circus. (When in Rome, do as the Romans did. They threw Mussolini out because of political leanings which interfered with the welfare of the nation).