I found it interesting that Senator John McCain (R-AZ) "amendment would have kept TE funds from being used for landscaping, historic preservation, museums and welcome centers and other currently eligible uses he characterized as “low-priority.”
"If the overall funding level stayed the same and the number of uses competing for that funding was reduced, McCain’s amendment could potentially mean more money for bike/ped projects"
But it has been tabled and is essentially dead.
Personally I see that as good news on what direction things are going but a lot of people like the other uses so if you want to know more about that see: https://dc.streetsblog.org/2011/10/19/transportation-enhancements-beats-back-another-assault/
Biking in Baltimore