"Leadership PAC" is another way of saying "questionable use of money"

From Election Law Blog -

“Scores of lawmakers’ leadership PACs spent vast sums on luxurious dining, lodging, and travel, new Issue One and Campaign Legal Center report shows”

From the report:

New research from Issue One and Campaign Legal Center shows that scores of lawmakers are not using the bulk of the money they raise in their leadership PACs to assist other candidates, political groups, or their parties — the intended purpose of leadership PACs when they were approved by the Federal Election Commission more than 40 years ago.

While most members of Congress primarily use their leadership PACs to make political contributions, Issue One and Campaign Legal Center found that the leadership PACs of 120 members of Congress spent less than 50% on politics between January 2019 and December 2020 — roughly one of every five members of Congress….

Note: The report doesn't include Senator Mark Kelly, who, at that point, hadn't been a member of the Senate during most of the covered period of time.

From the report, Arizona's Congressional contingent, listed alphabetically by last name - 

The worst offenders by percent spent on politics - 

Ordered by amount of money spent -

Notice a pattern?

The only time that Senator Kyrsten Sinema is near the bottom of the list is when it's presented alphabetically.

Otherwise, she spent far and away the most money from her leadership PAC and she is tied for lowest percentage spent on politics.

Of course, of the only three Arizona members under 50% there, one was unelected and is no longer a member of Congress (McSally), one is, ahem, "ethically challenged" (Schweikert). and Sinema, who, even when she was in the AZ lege, was notorious for not helping other Democrats.

Refilling the money coffers may be one of the reasons that she's hobnobbing with business groups today.