Bordallo's husband, the former governor, committed suicide in 1990, when his appeals were unsuccessful and convictions of witness tampering and conspiracy to obstruct justice would require incarceration in federal prison.

In April 2008, Bordallo apologized after an investigative report by the Pacific Daily News revealed that she and Senator Jesse Lujan both claimed to have degrees on their official biographies and resumes when they had not graduated from college.

[6] In August 2018, Bordallo lost her bid for renomination for another term as delegate in the Democratic primary to territorial senator Michael San Nicolas.

Originally, the bill would have included the provisions to create a fund in the U.S. treasury to pay reparation claims to "living Guam residents who were raped, injured, interned, or subjected to forced labor or marches, or internment resulting from, or incident to, such occupation and subsequent liberation; and (2) survivors of compensable residents who died in war.

[14] In January 2012, Republican Guam Senator Frank Blas Jr. announced he would challenge Bordallo in the upcoming November election for her delegate seat.

Republican candidate Margaret McDonald Metcalfe announced that she would challenge Bordallo in the 2014 November election for her delegate seat.

In the 2018 elections, Bordallo lost the Democratic primary to territorial Senator Michael San Nicolas for the delegate seat in the U.S. House of Representatives by 3.4%.