There was the bipartisan Border Security, Economic Opportunity, and Immigration Modernization Act of 2013. That bill had $46 billion for border security but the majority of that was to hire more border patrol agents, not to build a border fence. The dems have consistently offered to increase spending on border security. The idea that they are against border security and don't want a secure border is as made up as the facts of this post.
https://en.wikipedia.org/wiki/Border_Security,_Economic_Opportunity,_and_Immigration_Modernization_Act_of_2013