[T]he gathering grew contentious when a woman representing an environmental advocacy group pressed Clinton on whether she would support banning fossil fuel extraction on public lands, including the use of hydraulic fracturing, the controversial natural gas drilling technique commonly known as fracking.
Clinton had said in response to an initial yes-or-no question that she could not commit to such a ban until alternative sources of fuel were in place.
"That may not be a satisfactory answer to you, but I have to take the responsible [approach]," she said. "We still have to run the economy. We still have to turn on the lights."
Principled liberals will find this unacceptable, because it is. But what more did you expect from a candidate whose biggest campaign bundlers are oil lobbyists? From the Huffington Post:
Nearly all of the lobbyists bundling contributions for Democratic presidential candidate Hillary Clinton’s campaign have at one time or another worked for the fossil fuel industry.
A list of 40 registered lobbyists that the Clinton camp disclosed to the Federal Election Commission on Wednesday revealed a number of Democratic Party lobbyists who have worked against regulations to curb climate change, advocated for offshore drilling, or sought government approval for natural gas exports...
Scott Parven and Brian Pomper, lobbyists at Akin Gump Strauss Hauer & Feld, have been registered to lobby for the Southern California-based oil giant Chevron since 2006, with contracts totaling more than $3 million. The two bundled Clinton contributions of $24,700 and $29,700, respectively. They have helped Chevron over the years resist efforts to eliminate oil and gas tax breaks and to impose regulations to reduce carbon emissions.
Hillary Clinton's campaign has also accepted a lot of money from Wall Street banks, the sworn enemies of principled liberals like Bernie Sanders.