Complex sentence: In early May, a poll released by the conservative polling organisation Vox Populi Polling showed her leading Merkley by 45% to 41%, however her candidacy also began to receive greater scrutiny.
Split into simpler sentences: In early May, a poll released by the conservative polling organisation Vox Populi Polling showed her leading Merkley by 45% to 41%. However, her candidacy also began to receive greater scrutiny.