The announcement, if it happens according to the adviser’s timetable, would come several weeks before presidential candidates traditionally reveal their picks for the second slot on the ticket. It would also come as Romney’s campaign seeks to deflect intensifying criticism from President Barack Obama, other Democrats and some Republicans over Romney’s business record and refusal to release years of personal income tax filings.

Outside a Louisiana fundraiser on Monday, senior adviser Eric Fehrnstrom said Romney hadn’t finalized his decision but that an announcement could come within days.

Asked specifically whether Romney could announce his vice presidential pick this week, Fehrnstrom said: “Technically it could, but the governor hasn’t made a decision. It will only happen after he makes a decision.”