Let's try to catalog the misconceptions here:
* Biden is not a key Obama influencer. The VP rarely is, but this one in particular.
* Obama's tensions with the 4th Amendment stem from counterterrorism and a desire to continue joint NSA/FBI programmatic surveillance systems that they believe are catching terrorists. At the time Biden proposed this language, we were still subsidizing those same terrorists.
* Biden was not the point person for '90s anti-crypto legislation.
* Biden was a cosponsor of CALEA, which actually explicitly exempts providers from decrypting encrypted content.