In a news conference Thursday afternoon, Costello along with Windsor West NDP MP Brian Masse urged the government to improve the process of family reunification during the Canada-U.S.

Windsor-Tecumseh NDP MPP Percy Hatfield also stood up in the legislature at Queen's Park on Thursday to appeal to the federal government on the family's behalf.

It comes after a CBC News investigation found that a top Donald Trump donor was granted a special entry exemption into Canada last month. .

Liz Uihlein, and two of her company's senior executives were granted special exemptions for a 36-hour business trip to an office and warehouse in Milton. .

The federal government has classified a number of jobs as "essential" during the global pandemic and has exempted truck drivers, airline flight crews, health-care professionals, critical infrastructure workers and some technicians from the quarantine rule.

Exemptions have also been granted to hundreds of athletes. .

The special entry exemption meant she was allowed to skip Canada's mandatory 14-day quarantine for foreign travellers.

In response to CBC's story, Public Safety Minister Bill Blair said Uihlein's exemption from the mandatory 14-day quarantine period came as a result of a mistake by the Canada Border Services Agency.

On Thursday, Costello said her grandparents had since entered Canada and had been in quarantine for a few days already — but feared her mother, Diane, might not be alive long enough to see them when that 14 day self-isolation period was up.

Costello said it's "upsetting" to know billionaire CEOs and political influencers have received special exemptions for the quarantine period, while her grandparents have not been granted the same to see their dying daughter.

On Wednesday, federal government officials announced Canada's border clampdown on travel could soon be adjusted to allow some new humanitarian exemptions, adding it is looking to establish a process to weigh certain travel applications on a case-by-case basis