Medications might also cause a drop in blood pressure. Beta-blockers and nitroglycerin, used to treat heart disease, are common culprits. Diuretics, tricyclic antidepressants, and erectile dysfunction drugs can also cause hypotension. Some people have low blood pressure for unknown reasons.
Theoretically, then, the President can probably pardon him/her-self for any Federal crime â but this only prevents actual prosecution for that crime, not impeachment for the crime itself. Prior Answer, to the hypothetical of the VP murdering the President and then pardoning himself:
No. Expungement is a judicial remedy that is rarely granted by the court and cannot be granted within the Department of Justice or by the President. Please also be aware that if you were to be granted a presidential pardon, the pardoned offense would not be removed from your criminal record.