Solar stocks tumbled Friday after Sen. Joe Manchin said he will not support increased spending to address climate change, according to NBC News, citing a Democrat briefed on the conversations.The Invesco Solar ETF, which tracks the industry, fell more than 7% at one point. Some of those losses were recovered later in the day, with the fund ending Friday’s session about 2% lower. For the week, the fund is down more than 10%. Sunrun, Sunnova, First Solar and Maxeon Solar all fell more than 10% at one point.