I followed through with your article, and then looking up the term itself: This is what that word means, according to several sources:
"Waheguru (
Punjabi: ਵਾਹਿਗੁਰੂ, romanized:
vāhigurū[note 1], pronunciation:
[ʋaːɦɪɡuɾuː], literally meaning "Wow Guru",
[1] figuratively translated to mean "Wonderful
God" or "Wonderful Lord"
[2][3]) is a term used in
Sikhism to refer to God as described in
Guru Granth Sahib.
[4][5][6][7] It is the most common term to refer to God in modern Sikhism."
The prayer was this, according to this article:
"Dear Waheguru, our one true God, we thank you for creating America as a unique haven on this Earth, where all people are free to worship according to their faith. We seek your blessings and guidance for our beloved country. Please bless our people with wisdom as they vote for the upcoming election and please bless with humility, honesty, skill and integrity all those who conduct the election," she said after the prayer."
If the term means Wonderful God or Wonderful Lord, that's ok.