Of course. Being under oath does not make you infallible.
A:Witnesses who hold religious beliefs are invited to give their testimony under oath, to remind them of the solemnity of their evidence and the absolute requirement to answer truthfully. Those who, for any reason, do not wish to answer under oath can make an affirmation, which has exactly the same legal standing as an oath.
People who did not take the oath saying they supported the Union.
When you make an affirmation you are giving your word that what you say is true. Affirmations can be used in place of an oath for people who oppose taking an oath for religious reasons.
Witnesses
Lying under oath in a civil court is perjury. It is punishable by law.
When,in court,you swear to tell the truth,the whole truth and nothing but the truth and then tell a lie.
no
Under Oath - 1997 is rated/received certificates of: Argentina:13 Iceland:16 USA:R
Yes, lying under oath constitutes perjury, which is a criminal offense punishable by law.
I am not sure which "proceedings" you are asking about. All presidents make mistakes, and Barack Obama is no exception. If you are talking about the mistake when taking the oath of office in January 2009, that was not his mistake: Chief Justice John Roberts read the oath incorrectly and Mr. Obama repeated it incorrectly as a result. To make sure everything was the way it was supposed to be, the president was asked to re-take the oath the next day, and this time, it went off perfectly.
perjury
To lay, as a stake; to wager., To lay down., To assert under oath; to depose., To testify under oath; to depose; to bear witness.