buy a new one!
The linkage bushings are worn/missing/broken or the wiper arms are not timed properly to the wiper transmissions.
Shift linkage broken,or trans bad. OR axle came out, or broken.
What part of it is broken?
The nozzles pop in and out easily if you twist and slide them around.
A sway bar link kit is available from your local auto parts store. Remove what is left of the broken link and replace it with the new one. Change them in pairs would be recomended.
What is the year?
If a windshield wipe arm is loose on a 2002 Chevrolet Blazer, it likely needs to be replaced. It probably has a broken connection.
Check your wiper linkage under the hood and/or the tightness of the wiper arm on the wiper spindle.
The linkage to the transmission may be broken. There may also be a problem with the shift censor as well.
Get a new one at a salvage yard.
Linkage is out of adjustment or bent. Release handle broken or bent.
Windshield