Herb Kohl, owner of the Milwaukee Bucks, borrowed at least $55 million last year from the NBA's credit facility, according to his Senate financial disclosure form.

The records also indicate that Kohl used some of the proceeds for investments by two of his trusts. That is allowable under NBA rules for those borrowing from the $2 billion credit facility.

It is not uncommon for NBA owners to borrow from the league's credit facility, largely because of favorable interest rates. A total of 19 teams in the league did just that last year.

The Bucks are the least-valued team in the 30-team league.