You can catch yourself up on the saga of Caltrain electrification regarding our trees here, the ballooning costs here and the B'way grade separation here. In an effort to keep electrification moving, Kevin Mullin has a bill in front of the Gov. According to the Daily Journal
Assemblyman Kevin Mullin, D-South San Francisco, announced his colleagues passed Assembly Bill 1889, which seeks to clarify a 2012 law allocating funds from the voter-approved Proposition 1A bonds toward “bookend” projects — improvements at either end of the state’s controversial bullet train route from Los Angeles to San Francisco. Mullin’s bill claims to clarify the Legislature’s intent and allow high-speed rail funds be spent on Caltrain now, instead of it waiting until the bullet train is ready to roll.
Caltrain and high-speed rail became intertwined when the two opted for a “blended system,” meaning the two agreed to share the tracks running along the Peninsula. Caltrain electrification has been chugging along, having passed an environmental review and now in the process of a final design.
The "blending" is likely to create an operational nightmare as well as further jeopardize funding plans since it is part of the reason for various lawsuits against the original Proposition due to the reduced speed (thus not meeting the original spec). The best case scenario is Caltrain gets electrified and the high-cost boondoggle sinks into the bog when we get a new governor.