mforeman 0 Newbie Poster

I'm trying to remove extra white spaces between two fields with little luck. I can remove trailing and beginning spaces but not inbetween. Can someone help out. Here is what I have - I would like to make all the users aligned and thought I could remove the extra spaces for user1 - 4.

23825228 user1
17611440 user2
14201868 user3
10235268 user4
9009544 user5

To remove the begining spaces I did this:
sed 's/^[ \t]*//

Can I modify this so it will work between fields?
Thanks