Lori Calvasina, Head of US Equity Strategy at RBC Capital Markets, believes that concerns over Federal Reserve policy uncertainty, potential rate hikes, and valuation may not be enough to derail the current equity rally. Her comments come as Wall Street traders reacted to fresh Middle East violence and rising Brent crude prices, which could fuel inflation and prompt the Fed to raise rates. Treasury 30-year yields also hit their highest level since 2007.